On December 28, 1890, First Lieutenant James D. Mann, K Troop 7th Cavalry, was left in charge of his battalion’s camp at the Wounded Knee Post Office while his battalion commander, Major S. M. Whitside, rode out with over 240 troopers to meet and capture Big Foot and his band of Miniconjou Lakota. Lieutenant Mann sent the following message at 1:30 p.m. from the cavalry camp to the Assistant Adjutant General of the Department of the Platte headquartered in the field at the Pine Ridge Agency.
I ordered my men to fire and the reports were almost simultaneous.
Major Whitside with all mounted men and mountain guns left camp at 12 m. to meet Big Foot’s band, reported to be in camp at the crossing of the Porcupine, having been reported there by Little Bat. We have in camp here two of their men, holding them as prisoners.
I have just been informed by Vespucius, a halfbreed, who has driven from the agency to this point, that he met about 50 strange Indians, who were about 9 miles from the agency and heading in that direction. These, I learn from our prisoners, are from Cherry creek and are trying to get into the agency.