In the 1900 Federal Census, Sanford W. Remington is age 56, b MA, living at Shell Rock, Butler Co., IA. His wife Dora A. is 43, b IL. They have three chidren: Wilber G. 18 IL, Charles A. 16 IL, & Millie A. 13 IA.
In 1910, the family of five is still together at Shell Rock.
In 1920, S. W. Remington is age 76, still living at Shell Rock, IA. With him is son Charles A., 35. Married daughter Millie is listed on the same census page as wife of Henry F. Renning. Sanford's brother Herbert is at Cedar Falls, IA.