Dates of Rank for Brevet Brigadier-General Francis Amasa Walker

• August to September, 1861—Sergeant-major, 15th Mass. Vols.
• September 14,1861, to August 10,1862, Captain and Asst. Adjutant General, U. S. V.
• August 11 to December 31, 1862—Major and Asst. Adjutant General, U. S. V.
• January 1, 1863, to January 12, 1865—Lieut. Colonel, Asst. Adjutant General, U. S. V. Headquarters Second Army Corps.
• August, 1864—Brevet Colonel, U. S. V.
• March 13, 1865—Brevet Brigadier General, U. S. V.

SOURCE: James Phinney Munroe, A Life of Francis Amasa Walker, p. 38