James & Mary Cook

I am looking for James Cook born 1839 in Canada died 1886 in IA or NE. He married Mary E (Stevens or Stone). They had 7 kids: Rosa, dora, blanche, edward, charles, and Sylvia. Sylvia was born 1876 in NE & died 1942. She married first Ervin Davis & had 5 kids, then married Edmond O'Brien & had 2 more.