At twenty five he was appointed to Sacramento by Bishop Daniel A. Payne, but he could not afford to go, so he moved to Washington, D. C. where he organized a Sunday School for freed slaves in the Navy Yard with the permission of Admiral John A. Dahlgren.
Tanner was hesitant to settle the dispute, but Derrick improved his place in the view of the AME leaders over the next few years and the pair reconciled.
[5] He was a participant in the March 5, 1897, meeting to celebrate the memory of Frederick Douglass which founded the American Negro Academy led by Alexander Crummell.
[6] Until 1905, he was a participating member of this first major African American learned society, which was led by scholars, activist, editors, and bishops like Tanner.
It refuted racist scholarship, promoted black claims to individual, social, and political equality, and studied the history and sociology of African American life.