Looking for Cornecl Cornelison Cornelius

It is said that GR Gr Grandfather FNU Cornelius was an indian cheif and that the family could have had head trible rights he was married to Mary LNUhad childern Calidonia, Tinie ,James ,Emma, Preston C. the name was changed to Cornelison rather than go on the reservation,Preston married Annie LNU had daughter named Pearl. When Preston left he changed his name to Cornecl i am looking for Preston C. Cornecl/Cornelison/Cornelius Parents and their parents ect.on up the line