Military Record of Events, Camp Pilot Butte, Wyoming, October 1, 1890
Transcription: 1st Lieut. J.B. Jackson, 7th Infantry, commanding with 25 enlisted men of Co. H 7th Infantry left this Post at 5:30 p.m. Sept. 15 1890 en route to take station on Fort Leavenworth, Kan. In compliance with S.O. 62 par. 3 Dept. Platt. Co. A, 7th Infantry has performed the usual Garrison duties during the month.