August 15, 1862
On August 15, 1862, the Rev. Robert Lewis Dabney resigned as adjutant, or chief of staff, from Stonewall Jackson's brigade. Initially opposed to secession, Presbyterian Reverend Dabney sided with his state in the conflict. In May 1861, he began four months of service as chaplain to the 18th Virginia Infantry Regiment before returning to his professorial duties at the Union Theological Seminary (Hampton-Sydney, VA). Presbyterian Thomas J. "Stonewall" Jackson often heard Dabney preach and asked him to serve as his adjutant which he was appointed to on April 22, 1862. Illness forced him to resign on August 15, 1862. When Jackson's widow later asked Dabney to write a biography of the general, which he published as Life and Campaigns of Lieut.-Gen. Thomas J. Jackson (Stonewall Jackson).