Bob Jackson, half breed brother of Billy Jackson, from Walter Camp's interview notes with Harvey A. Fox [D Co.] and John A. Bailey, Lilly Library, Folder 4, Envelop 44, with my annotations in brackets:
Harvey A. Fox says that Bob Jackson was sent back to Ft. A. Lincoln with a dispatch from the Little Missouri and did not get any farther than Powder River by June 25. Says that when Custer got to Little Missouri he gave strict orders that there should be no unnecessary shooting about the camp. In disregard of this, Bob Jackson went down to the river and blazed away at some ducks. Custer was unable at once to contrive what form of punishment would be suitable, but finally decided to get rid of him for the time being by sending him back with a dispatch. Harvey A. Fox, D Co. was left at Powder River. Says Bob Jackson was sent back with dispatch from Little Missouri and never got to LBH.... John A. Bailey says Bob Jackson was not at LBH June 25 or 26. [He] says that at [the] Little Missouri River Reno had him - Jackson - standing on a barrel, as punishment for some offense or other and they understood that about this time he was sent back with a dispatch.