Letter
We had marched about eight or nine miles from the post when we met to R. C. Drum, August 18, 1861
Fort Crook, Cal. Fort Crook, Cal., August 18, 1861. Capt. R. C. DRUM, Assistant Adjutant- General, U. S. Army, San Francisco, Cal. : Sir: Herewith inclosed I have the honor…