Dickinson (Joseph)

Wikipedia says: Major, Asst. Adjutant Gen. USV. Bvt. Brig. Gen. USV, March 13, 1865.

Library of Congress says: Joseph Dickinson (Maine) Brevetted for gallantry of staff duty at Gettysburg.

MOLLUS Collection says: Joseph Dickinson (Lieutenant Colonel, A.A.G.), on staff of Gen. Hooker.