Willis migrated to Marion Co., OR. prior to 1857 as son Andrew was born in OR. He, wife Mary and family were residents of the county during the 1880 census (ED 84-5).
Mary was listed in the Marion Co., 1900 OR. census (ED 137-4) with son Bennet Willis and daughter Mollie in the home.
Thomas Marshall DUNNAGAN (DOAS)
Thomas, wife Rachel and family are residents of Buchanan Co., MO. (p 367) during the 1870 census. He was not located in the 1880 census reports of MO. or OR., however by 1900 he and wife were residents of Marion Co., OR. (ED 137-5), a neighborto son Thomas..