Davis Northup Elgin County Ontario CA to S Dak to Oregon

Working on details of Elgin James Davis, who married Sarah Northup in Ontario, Canada, about 1875, immigrated to Hamlin County, Dakota Territory about 1880, then to Watertown, Codington County, S. Dak. about 1883, then to state of Washington in 1898 and finally to Portland, Multnomah County, Ore. by 1903, with by then 4 children.