Quinn adopted the name B. Frank Miller, and enlisted in a three-month unit in Indiana, disguising herself as a man. In July, 1862, she joined the
2nd Regiment Tennessee Volunteer Cavalry, where she was almost immediately discharged from duty. In August 1862, she joined under a different name the
90th Illinois Infantry Regiment. The next month, she was discovered by Colonel Timothy O'Meara, and she was dismissed. To him, she gave her "true name" as Eliza Miller. The women were reportedly put in dresses and provided means to return home by
General Sheridan, Quinn giving herself a new alibi, calling herself Ellie Reno, a niece of Jesse Reno. She returned home, but in April 1863, she learned that her brother had been killed in the
Battle of Shiloh. Grief-stricken, she rejoined the army under the name of Frank Martin, eventually becoming an orderly to
General Jeremiah Boyle. She was very successful, bringing in rebels to a Union Military prison in
Louisville, Kentucky, and hired to do light duty at the prison barracks. She impressed General Boyle, and became the favorite of the
25th Michigan Volunteer Infantry Regiment also working there. Quinn was then sent to
General Ambrose Burnside, where she was put in the care of an officer's wife, and offered a job at a Louisville hospital. Around this time, Quinn was said to have married a "good-looking and gallant Captain" with the last name Steward, who died soon after their marriage. In October, 1863, Quinn was back in the army, once again in the
90th Illinois Infantry Regiment under the name Frank Miller. She was captured by
Confederates in
Alabama, and forced to march to a prison camp in
Atlanta, Georgia. She attempted to escape, but was shot in the calf and re-captured. In prison, her sex was discovered, and she was placed in a room at a local hospital. Her wound became infected, and she lay ill for nearly two months. On February 17, 1864, she was exchanged as a prisoner to the Union Army. She stayed in the Nashville hospital until her leg healed, and then received her pay and lived in
Ohio until the war ended. ==Later life==