In the 1920 Federal Census, Frederick O. Remington is living at Kearney, Buffalo Co., NE, with his three young sons. His widowed mother is also living in the household. I don't know the name or whereabouts of his wife. The census has his marital status as M.
A Remington Family History Report from Ann Bowler states that Alta Remington, Fred's wife, was in a state hospital at Denver, NE, in the 1920 census.