At the outbreak of the Civil War, Conrad taught at the Georgetown Institute in Washington, D.C., who also bestowed a master's degree on him in 1860. While there, he openly expressed his sympathy for the Confederacy, and a few days after the June 1861 commencement, he was arrested and placed in the Old Capitol Prison. Conrad was given a letter of recommendation from General Stuart to President Jefferson Davis to spy for the Confederate Secret Service. He met Davis, who endorsed the letter and referred him to other members of the Confederate government. Conrad received gold from Judah Benjamin and his “name placed on the rolls of the secret service bureau”. He then saw Secretary of WarSeddon for “papers and outfit”. Davis invited Conrad to his executive mansion to hear his plans. Captain Conrad went to Washington with his Dickinson roommate and Phi Kappa Sigmafraternity brother Daniel Mountjoy Cloud and M. B. “Tippie” Ruggles, son of General Daniel Ruggles as couriers. His slave William also accompanied them Conrad set up his covert intelligence gathering operation in a large home in the heart of Washington D.C.. His wartime exploits included among other things, hatching a plot to assassinate the Commanding General of the United States Army, Winfield Scott, that was vetoed by the Confederate government who feared that the elderly and infirm Scott would be replaced by someone more fit for command; sneaking into the War Office during lunch hour to lift copies of documents describing General McClellan's battle plans for the Peninsula Campaign, a large-scale offensive by the Union Army to capture the Confederate capitol at Richmond from the desk of a friend who was a double agent; and conspiring to kidnap U.S. President Abraham Lincoln. In September 1864, Conrad and a team went to Washington in an attempt to kidnap President Abraham Lincoln. The members of the team were “Bull” Frizzell, Cloud, and slave William. The plan was abandoned because Lincoln was well protected. Conrad denied that the Confederate government knew of his plot except the military secretary of General Braxton Bragg. However, Seddon wrote an order for John S. Mosby and Lieutenant Cawood to “aid and facilitate the movements of Capt. Conrad.” Conrad’s courier Ruggles assisted John Wilkes Booth by giving him a ride on his horse shortly before Booth was killed. Conrad was also a frequent visitor to Mary Surratt's tavern. Conrad was arrested by a landing party of the Union vessel Jacob Bellon the night of April 16, 1865. He was put aboard a train bound for a Union prisoner of war camp but managed to escape by jumping from the moving train after the soldiers guarding him fell asleep. In May 1887 Conrad wrote several articles about his activities as a spy for a Philadelphia newspaper. He later reworked these into the 1892 autobiography A Confederate Spy: A Story of the Civil War, which he later revised into the 1904 work The Rebel Scout: A Thrilling History of Scouting Life in the Southern Army.
Post-War Career
In 1871, Conrad was appointed principal of the Preston and Olin Institute in Blacksburg, Virginia, until it reorganized the next year as Virginia Agricultural and Mechanical College. He then purchased the Montgomery Messenger newspaper. Conrad served as the mayor of Blacksburg for three months in 1882 and was appointed president of Virginia Agricultural and Mechanical College the same year. During his tenure, the college switched from semesters to the quarter system, which remained in place until the late 1980s. The college spent $2,229.96 on books of fiction and poetry, and a museum was opened. For the first time, the school’s farm became financially successful. In 1886, the Board of Visitors removed all officers and faculty of the college, including Conrad. Conrad once again became mayor of Blacksburg, this time for one month in 1887. He then joined the faculty of the Maryland Agricultural College, resigning in 1890 to accept a position with the Census Office in Washington D.C. He later retired to a farm in Prince William County. He died in Washington, D.C., on January 5, 1905, and was buried in Montgomery County, Virginia.
Personal Life
Thomas Nelson Conrad married Emma “Minnie” Ball on October 4, 1866, and the couple had seven children.
Legacy and Honors
The Conrad Cavalry, the equestrian unit of the Virginia Tech Corps of Cadets, is named for Conrad who was an expert horseman.