Edward M. Cook, died bisbee, AZ 1940s?

Not sure of date of death. Searching for ancestors before Edward M. Cook, died in Bisbee, AZ, Had a sister or daughter named Vera, and had several children. Only know the name of a few, Roberta Selma & Alma Alice ,twins born in 1922, Evelyn, born 1920s? and possibly Cecil.Roberta and Alma both born in Arizona for sure. Don't know Edward Cook's wife's name. Know that there is Native American blood somewhere in there, probably Cherokee or Chocktaw but might be from the mother's side (name unknown). Does this ring a bell to anyone? I'm new at this, so any advice would be great. Thanks.