The Importance of the Telegraph in the US Civil War: Part 3 - The Union’s Use of the Telegraph

The American Civil War (1861-65) saw a breakthrough in various technologies. One of particular importance was the telegraph, a communication technology that had grown greatly in significance in the years before the US Civil War broke out. Here, K.R.T. Quirion concludes his three-part series on the importance of the telegraph in the US Civil War by looking at the role of the telegraph in the later years of the Civil War and its importance in the Union’s victory.

You can read part 1 in the series on the history of the telegraph in the 19th century here and part 2 on the telegraph in the early years of the US Civil War here.

Wagons and men of the U.S. Military Telegraph Construction Corps. Brandy Station, Virginia, 1864.

President Lincoln in the Telegraph Office

As an early adopter of the telegraph, Lincoln realized the importance of building a strong telegraphic infrastructure within the government and the military. With the Union facing the prospect of a 1,000-mile battle front, the telegraph gave Lincoln an unprecedented ability to “converse with his military leaders in the field as though he were in the tent with them” and power to “assume the role of commander-in-chief in a more titular sense.”[1]

Before Lincoln could exercise any degree of control over the nation’s dispersed military forces, it was necessary to organize the telegraphic capabilities of the Union. At the start of the Civil War all government telegraphs passed through one central communications hub, not even the War Department had its own separate line. [2]The organization of the USMTC soon remedied that deficiency when its headquarters were established inside of the War Department. By March of 1862, the telegraph had become so vital to the prosecution of the war that Secretary Stanton moved the USMTC telegraph office into to the “old library room, on the second floor front…adjoining his own quarters.”[3]In short order, the telegraph office of the War Department became Lincoln’s “Situation Room, where the president not only monitored events through incoming messages but also initiated communications directly to the field.” Lincoln spent more time in the telegraph office than in any other location during his presidency.[4]

Lincoln Takes Command

At first, Lincoln’s telegraphs were few. In the last six months of 1861, Lincoln sent only thirteen telegrams.[5]Despite this infrequency, the President exhibited no qualms about using the telegraph to “issue instructions regarding the disposition of troops.”[6]In these early telegraphs, Lincoln began exercising the authority of the commander-in-chief in a direct way. In one telegraph to John C. Fremont, the President ordered the General to begin deploying his troops in Kentucky. [7]Lincoln even went so far as to countermand Fremont’s own dispensation of his troops. [8]These first forays in taking direct command of Union troops were on a “glimmer of what was to happen.” [9]By 1862, the president had begun using the telegraph as means of directly communicating with commanders in the field without the filter of their commanding general. [10]Part of this direct action by Lincoln was brought about by has frustration with General George B. McClellan’s hesitancy to engage the enemy.

In May, the President traveled to the front lines of McClellan’s Peninsular campaign to see the work first hand. Upon arrival, Lincoln discovered that although the Union occupied Fort Monroe, the General had done nothing to silence the Confederate ironclad the Merrimac, or its base of operations at Norfolk, both of which resided just across the waters of Hampton Roads. Furious with McClellan’s complacency, the President took it upon himself to capture Norfolk and began “directing the movements” from his mobile White House at Fort Monroe. [11]

Having taken action and tasted the fruits of his decisiveness, Lincoln thereafter began issuing “explicit and direct command to his generals” through the telegraph network. [12]His deepening involvement with the intricacies of the war led Lincoln to practically live in the telegraph office, going so far as to request a cot be set up in that room so that he could remain in proximity to the wires rather than return to the White House. [13]The cipher and telegraph officers of the War Department on whom Lincoln relied said of the President that the “Commander-in-Chief…possessed an almost intuitive perception of the practical requirements of that….office, and…was performing the duties of that position in the most intelligent and effective manner.” [14]All of the “intuitive perception” in the world would have been useless however, had it not been for the amazing power of the telegraph.

Union Military Commanders Use the Telegraph

Lincoln was not the only Union commander who learned to use the telegraph to project himself across the vast lengths of the battlefront. It was in fact the “Young Napoleon” George McClellan himself that first grasped the great potential of this new technology. Later, General Ulysses S. Grant would perfect the use of the telegraph giving him a precision of control over the movements and actions of his troops unheard of before in the history of warfare.

McClellan had experience with commanding through the telegraph before he was appointed to lead the Union army. Fresh out of West Point, the Army sent McClellan to Europe as an official observer of the Crimean War. There he witnessed the first application of the telegraph in battle. Following that, he resigned his commission to become a railroad executive, where he became intimately acquainted with the telegraph. Thus, when he rejoined the army at the start of the Civil War, there was perhaps no military commander better suited to make use of this new technology.

Within the first few months of the war, McClellan enlisted the services of a Western Union Executive, Anton Stager, to organize a military field telegraph. It was soon after this that Stager was assigned to oversee the operations of the USMTC. In short order, McClellan, because of the telegraph, was able to exert unprecedented tactical communication with his command which allowed him to rapidly change battle plans. [15]He brought his experience with using the telegraph network with him once he was appointed to lead the Union’s forces. Once in Washington, McClellan’s headquarters were quickly “festooned with wires connecting him to all the fronts and making [him] the hub of military information.” [16]

Unfortunately for the President, all the information in the world could not get McClellan to move. The commander who would most effectively employ the telegraph was Ulysses S. Grant. Greely writes that:

From the opening of Grant’s campaign in the Wilderness to the close of the war, an aggregate of over two hundred miles of wire was put up and taken down from day to day; yet its efficiency as a constant means of communication between the several commands was not interfered with. [17]

The lines of the USMTC bound the corps of the Army of the Potomac together like “a perfect nervous system, and kept the great controlling head in touch with all its parts.” [18]Never after crossing the Rapidan did a single corps lose direct communication with the commanding general. 

Grant, more than any commander before him, employed the telegraph for both “grand tactics and for strategy in its broadest sense.” [19]From his headquarters in Virginia, Grant daily issued orders and read reports on the operations of his commanders who were dispersed across the vast battlefront of the Confederacy. With Meade in Virginia, Sherman in Georgia, Sigel in West Virginia, and Butler on the James River, Grant commanded a military force exceed half a million soldiers and conducted operations over eight hundred thousand square miles. [20]In his memoirs, General William Tecumseh Sherman said that, “[t]he value of the telegraph cannot be exaggerated, as illustrated by the perfect accord of action of the armies of Virginia and Georgia.” [21]

Conclusion

The successful application of the telegraph by the Union was the result of the concerted effort of Lincoln, his military commanders, and thousands of skilled USMTC operators. By the end of the Civil War, the USMTC had constructed 15,000 miles of dedicated military telegraph lines. [22]These lines were operated in addition to the thousands of commercial lines which were taken over by the federal government. Together this vast telecommunications network brought the President, the War Department, and the commanding generals “within seconds of each other”, though enemy fortifications or even thousands of miles of wilderness might have intervened. [23]

This intricately organized network allowed Grant to utilize the full potential of the telegraph. Grant more than any other commander besides Lincoln, learned to project himself using this new technology. In this way, Grant was able to strategically maneuver his forces across the battlefields of Virginia, Georgia, West Virginia and elsewhere with rapidity and precision. As Plum writes, the telegraph was of “infinite importance to the Commander, who, from his tent in Virginia, was to move his men upon the great continental chess-board of war understandingly.” [24]Grant acquired a precision and speed with this powerful new technology that allowed him to out maneuver his opponents. He used this power to command his army in ways that were unthinkable to previous generations of military leadership. With a clear picture of the immense theater of war and a powerful means of mobilizing his units Grant was able to cut off reinforcements to General Lee and shorten the conflict. [25]

 

How important do you think the telegraph was in the Union’s victory in the US Civil War? Let us know below.

Remember, you can read part 1 in the series on the history of the telegraph in the 19th century here and part 2 on the telegraph in the early years of the US Civil War here.

[1]Tom Wheeler, Mr. Lincoln’s T-Mails: How Abraham Lincoln Used the Telegraph to Win the Civil War, (New York, NY: Harper Business, 2007), 65. 

[2]Ibid., 1.

[3]Bates, Lincoln in the Telegraph Office: Recollections of the United States Military Telegraph Corps during the Civil War, 38.

[4]Wheeler, Mr. Lincoln’s T-Mails: How Abraham Lincoln Used the Telegraph to Win the Civil War, 10. 

[5]Ibid., 40.

[6]Ibid., 42.

[7]The Collected Works of Abraham Lincoln, ed., Roy Basler, (New Brunswick, NJ: Rutgers University Press, 1953), vol. IV, 485. 

[8]Ibid., 499.

[9]Wheeler, 41.

[10]Ibid., 44.

[11]Bates, 117.

[12]Wheeler., 54

[13]Ibid., 77.

[14]Bates, 122.

[15]Edward Hagerman, The American Civil War and the Origins of Modern Warfare: Ideas, Organization, and Field Command, (Bloomington, IN: Indiana University Press, 1988), 37.

[16]Wheeler, 40.

[17]Greely, “The Military-Telegraph Service.”

[18]Ibid.

[19]Ibid.

[20]Ibid.

[21]Plum, Vol. II, 140.

[22]Greely.

[23]Ibid.

[24]Plum, Vol. II, 128.

[25]Greely.

The Importance of the Telegraph in the US Civil War: Part 1 - The Invention of the Telegraph

The American Civil War (1861-65) saw a breakthrough in various technologies. One of particular importance was the telegraph, a communication technology that had grown greatly in significance in the years before the US Civil War broke out. Here, K.R.T. Quirion starts his three-part series on the importance of the telegraph in the US Civil War by looking at the history of the telegraph globally and in the US before the war broke out.

Samuel Morse sending the message ‘What Hath God Wrought’ in 1844. Image available here.

Introduction

The five years of the American Civil War saw the development of hundreds of new technologies. The number of patents approved by the U.S.Patent Office had been steadily increasing before the war. In 1815, the agency issued 173 patents, 1,045 in 1844, and 7,653 in 1860. [1] With the start of the Civil War, the rate of innovation increased so much that at least 15,000 patents were issued every year of the war. [2]

Some of these technologies, like the Gatlin Gun and the Ironclad, were developed specifically for the battlefield; others, such as improvements in transportation and communication were not. Much has already been written on the role that these new technologies played in the Civil War. For instance, that the Minie ball contributed to the high casualty rate has been widely accepted as has the significance of the railroad across the nation’s 1,000-mile battlefront. 

This article will focus on the role of the telegraph. Specifically, it will look at how the Union employed this new technology to successfully prosecute the war. It will argue that the telegraph allowed Union commanders, the War Department, and President Lincoln to control huge armies with unprecedented precision across the vast American landscape. This was made possible by thousands of miles of telegraphic wire, sophisticated mobile communication units, and hundreds of trained and dedicated operators. Together, these factors helped to shorten one of the most tragic episodes in American history. 

The development of the military telegraphic communication system was a slow and difficult process. Not until the closing years of the war was the Union able to achieve a high level of telegraphic integration within its command structure.  In order to appreciate the important role of the telegraph, it is necessary to examine both the development of this infrastructure and how Union leaders sought to integrate it into the military’s command structure.

Military Communication before the Telegraph

Prior to the invention of the telegraph, commanders and their civilian leaders had limited means with which to communicate. The principal method was through writing by couriers or orally by messengers. On the field of battle, other means to communicate were developed to coordinate dispersed units. Smoke signals, trumpets, drums, and flags became important in this regard. In 1794, the French military organized two companies of balloon riding “aeronauts” who used flags to signal their observations of enemy troop movements to friendly units on the ground. [3]

By the 18thcentury, practically every nation had adopted its own signature march which its troops were required to memorize. Amid the chaos of battle, the identity of a distant column of troops could often be identified solely by their marching music. On multiple occasions, resourceful commanders were able to use this to their advantage. One German force in the Thirty Years’ War, obscured its identity by maneuvering to The Scots Marche. According to William Trotter, “Allied (Anglo-Dutch-Austrian) drummers played The French Retreate so convincingly” that part of the French army withdrew from the field during the Battle of Oudenarde in 1708. [4]

In America, the organizational structure of the British Army was closely followed, including field communication by fife and drum. These were further improved during the winter of 1777–1778 at Valley Forge. There, Baron Friedrich Wilhelm von Steuben instituted the Continental Army’s first system of drill procedures, which included standardized maneuver and communication signals. These signaling methods “remained virtually unchanged until the invention of the electric telegraph.” [5]

In 1854, Dr. Albert Myer developed a new military signaling system which used a flag and torch combination. This system, known as “wigwag” employed only one flag as opposed to the traditional semaphores signaling, which employed two flags. [6]After appearing before a board of examination in Washington D.C., Lt. Col. Robert E. Lee declared that Dr. Myer’s wigwag “system might be useful as an accessory to… but not as a Substitute for the means now employed to convey intelligence by an Army in the Field, and especially on a Field of Battle.” [7]

Myer’s was authorized to test his new system in combat simulations. In June of 1860, the U.S. Army Signal Corps was created and Dr. Myers was appointed as its sole officer. By 1861, Myer had patented his signal system and was testing it in active combat situations in New Mexico under the command of Col. Thomas T. Fauntleroy. During this same time however, an even more revolutionary communication system was being created.   

Invention of the Telegraph

The development of the electric telegraph was the work of many individuals over nearly a span of 80 years. In 1774, the first experiments with electronic signaling were conducted by Georges Louis Le Sage of Geneva. Le Sage’s technique employed twenty-four insulated wires that each represented an individual letter and were connected to a pith ball electroscope. When the desired letter was imputed, the electrical current would excite the respective ball on the other end thereby spelling words letter by letter. [8]

Samuel B. Morse began his work on the telegraph in 1832.  Morse’s improved telegraph machine was patented on June 20, 1840. Patent number 1,647 covered the electro telegraph machine itself, Morse’s specialized “code” system, the type set for communicating those symbols and even its accompanying dictionary. His patent also included a “mode for laying the circuit of conductors” needed to operate the telegraph system. [9]

With this new design, the electric telegraph would soon transform the nature of communications. Morse, too poor to test his invention on a large scale, went before Congress in order to request $30,000 with which to construct an appropriate experiment. Wary of spending taxpayer monies on a dead end, Morse’s request was initially rejected by Congress. Despite this, the 1843 Congress approved the expenditure in its “expiring hour” and Morse began the work of constructing a “double (circuit) wire between Washington [D.C.] and Baltimore.”[10]

Finally, in 1844, Morse sent the world's first electric telegraph message across the Washington-Baltimore circuit. [11]He quoted four simple words from Numbers 23:23, “What God hath wrought?” Underlying this dramatic message was the knowledge that the world had entered a new era of communication and connectedness. [12]In 1841, it had taken 110 days for the news of the death of President Harrison to reach Los Angeles, California. [13]By the end of the decade, more than 20,000 miles of telegraph line would tie together the American landscape. This near instant transmission of information forever altered the course of history.

The State of Telegraphic Communications before the Start of the Civil War

Implementation of the telegraph on the battlefield would first occur in Europe during the Crimean War (1854 - 1855). This crude military telegraph system was limited to inter-command center communications. Two years later in India, the English used a system of rollers and carts to deploy miles of telegraph lines that were said to have worked over distances of one hundred miles. [14]The success that the English experienced with the telegraph caught the attention of the German military. Beginning in 1855, they instituted the first telegraph system as a permanent part of their military organization. The French and the Spanish militaries followed soon after.

In America, the telegraph had just over seven years to “develop in peaceful employments” before the start of the Civil War. [15]During that time, thousands of miles of wire were laid in conjunction with the rail lines that were beginning to crisscross the American landscape. Together, these new technologies began to change the pace of American life. Near instant communication and speedy travel “began to insinuate time as a factor into people’s daily lives...” and “…in business thinking.” [16]

Three great companies grew out of America’s growing reliance on telecommunications: the American Telegraph Company, the Western Union Telegraph Company, and the Southwestern Telegraph Company. By 1861, the combination of these three concerns had connected all of the major cities in the Union with the exception of those to San Francisco, California which were not completed until the end of the year. [17]There were more than 50,000 miles of telegraph cable in operation by 1861. [18]Yet, as the country headed toward war, the vast potential of the telegraph had only begun to be realized. Over the following five years, the telegraph would prove itself to be among the most revolutionary inventions of the 19thcentury. 

 

What do you think about the importance of the telegraph in the 19th century? Let us know below.

Now, you can read part 2 on the telegraph in the early years of the US Civil War here and part 3 on the Union’s use of the telegraph in the US Civil War here.

[1]“Civil War and Industrial Expansion, 1860–1897 (Overview),” Gale Encyclopedia of U.S. Economic History, 1999, Encyclopedia.com, accessed February 28, 2016.

[2]Ibid.

[3]William R. Plum, The Military Telegraph During the Civil War in the United States, Vol. I (New York, NY: Arno Press, 1974), 16.

[4]Ibid.

[5]Rebecca R. Raines, Getting the Message Through: A Branch History of the U.S. Army Signal Corps, (Washington D.C.: Center of Military History, 1996), 4.

[6]Ibid., 5.

[7]Ibid., 6. 

[8]Plum, The Military Telegraph During the Civil War in the United States, Vol. I,24.

[9]Samuel F.B. Morse, “Improvement in the Mode of Communicating Information by Signals by the Application of Electro-Magnetism,” Patent No. 1,647, United States Patent Office, (June 20, 1840), 1.

[10]Plum, Vol. 1,25.

[11]Don Cambou, Civil War Tech inModern Marvels, (New York, NY: A&E Television Network, 2006).

[12] “First transatlantic telegraph cable completed,” History.com, accessed March 01, 2016. 

[13]Arthur K. Peters, Seven Trails West, (New York, NY: Abbeville Press, 1996), 173.

[14]Plum, Vol. I,27.

[15]Ibid., 26.

[16]John E. Clark, Railroads in the Civil War: The Impact of Management on Victory and Defeat, (Baton Rouge, LA: Louisiana State University Press, 2001), 10.

[17]Plum, Vol. I,63.

[18]Cambou.

BIBLIOGRAPHY

Primary Sources:

Bates, David H. Lincoln in the Telegraph Office: Recollections of the United States Military Telegraph Corps during the Civil War. New York, NY: D. Appleton-Century Company Inc. (1907).

The Collected Works of Abraham Lincoln. Ed. Roy Basler. New Brunswick, NJ: Rutgers University Press. (1953).

Greely, A.W. “The Military-Telegraph Service.” Signal Corp Association. Accessed May 3, 2016. 

http://www.civilwarsignals.org/pages/tele/telegreely/telegreely.html

Morse, Samuel F.B. “Improvement in the Mode of Communicating Information by Signals by the Application of Electro-Magnetism.” Patent No. 1,647. United Stets Patent Office. (June 20, 1840).

O’Brien, John E. Telegraphing in Battle: Reminiscences of the Civil War. Scranton, PA: The Reader Press. (1910).

Plum, William R. The Military Telegraph During the Civil War in the United States, Vol. I & II. New York, NY: Arno Press. (1974).

“War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, 128 Vols.” U.S. War Department. Washington, D.C.: Government Printing Office. (1880–1901).

Secondary Sources:

Cambou, Don. Civil War Tech in Modern Marvels. New York, NY: A&E Television Network. (2006).

“Civil War and Industrial Expansion, 1860–1897 (Overview).”  Gale Encyclopedia of U.S. Economic History. 1999. Encyclopedia.com. Accessed February 28, 2016. 

http://www.encyclopedia.com/doc/1G2-3406400169.html

Clark, John E. Railroads in the Civil War: The Impact of Management on Victory and Defeat. Baton Rouge, LA: Louisiana State University Press. (2001).

Foote, Shelby. The Civil War: A Narrative, Vol. 1 Fort Sumter to Perryville. New York, NY: Random House. (1958).

“First transatlantic telegraph cable completed.” History.com. Accessed March 01, 2016. http://www.history.com/this-day-in-history/first-transatlantic-telegraph-cable-completed.

Hagerman, Edward. The American Civil War and the Origins of Modern Warfare: Ideas, Organization, and Field Command. Bloomington, IN: Indiana University Press. (1988).

McPherson, James M. Ordeal by Fire: The Civil War and Reconstruction. New York, NY: McGraw Hill. (2001).

Nasaw, David. Andrew Carnegie. New York, NY: Penguin Books. (2007).

Peters, Arthur K. Seven Trails West. New York, NY: Abbeville Press. (1996).

Raines, Rebecca R. Getting the Message Through: A Branch History of the U.S. Army Signal Corps. Washington D.C.: Center of Military History. (1996).

Wheeler, Tom. Mr. Lincoln’s T-Mails: How Abraham Lincoln Used the Telegraph to Win the Civil War. New York, NY: Harper Business. (2007). 

Journal Articles:

Farhi, Paul. “How the Civil War gave birth to modern journalism in the nation’s capital.” Washington Post.(March 2, 2012). 

https://www.washingtonpost.com/lifestyle/style/how-the-civil-war-gave-birth-to-modern-journalism-in-the-nations-capital/2012/02/24/gIQAIMFpmR_story.html.

O’Brien, J. Emmet. “Telegraphing in Battle.” The Century, Vol. 38, Is. 5 (Sep., 1889). http://www.civilwarsignals.org/pages/tele/teleinbat/teleinbat.html.

Scheips, Paul J. “Union Signal Communications: Innovation and Conflict.” Civil War History, Vol. IX, No. 4 (Dec. 1963).

Trotter, William R. “The Music of War.” HistoryNet. http://www.historynet.com/the-music-of-war.htm.