I am searching for information on my grandfather John WhiteHawk. He reportedly was born in 1870 at Ft. Yates,S.D. He attended the Indian Congress in Omaha,Neb in 1898 as an Assiniboine delegate and I have a certificate signed by W.A. Mener, Capt of the 8th Infantry and J.R. Wise, Indian Bureau Assistant Manger. His fathers name was WhiteHawk and his mother Red Thunder. John was a Medicine Man and sold herbal medicines in Orient, OH in the 1920's. He died 1930 in Harrisburg, Ohio. Any information you might have would be greatly appreciated.