Whistler was killed by white hide hunters in November 1872, and the following year saw some volume of Indian Office correspondence about the killing. In the Commissioner of Indian Affairs file of Letters Received from the Red Cloud Agency is an important report by Special Indian Commissioner Henry E. Alvord to the Commissioner of Indian Affairs, datelined Cheyenne, Wyoming Territory, June 25, 1873, to which is "appended a list of the nearest relatives of 'Whistler' and the men killed with him . . . .

"List of near relatives of 'Whistler' and comrades.

" 'Whistler's' true name was 'Little Bull'.
His son: - 'Bird's Head'. His nephews: - 'Iron Horse', 'Blue War Club', 'Bull Robe' and 'Bear-in-the-Woods.'
Also five (5) women - no names given.
Whistler's nephew killed at same time was adopted of the Gros Ventre tribe. 'Chief Dog', killed with 'Whistler' was a son of 'Yellow Ear' - deceased.
His brothers: 'The Man Above', 'The Dog that looks arolund,' 'The one that does not come to the lodge' and 'Two Lance'.
Also four (4) women - not named.
'Two Lance' is a half brother only, same father, different mothers."

— Kingsley Bray

Whistler was born 1833. My dad's folks died when he was four months old. Cooks With Punch raised him. One day when he was crawling around the house, he picked up a cricket and put it into his mouth and made the cricket holler like crickets do. That's how he got the name, Whistler. CHARLES WHISTLER

He married Old Woman 1872. She was born 1832.

He resided 1870. Whistler and his band of Cut-off Oglalas had their permanent village on the Medicine, near present Stockville.

He became the father of Moses Whistler 1873. At 40 years of age he became the father of Old Chicken 1873. He was listed as head of a family in an American Indian census on the Pine Ridge Indian Reservation, USA, 1886.

http://freepages.genealogy.rootsweb.ancestry.com/~mikestevens/2010-p/p337.htm#i12521

From a website found by Grahame Wood