I have an Oscar Samuel Hemsted (1868-1943) in my family tree. He married Frieda Lindemann (1870-1904) They had two children: Meta (1900-1973) and John (b 1902). I don't know what happened to John after his mother died. Last known verifiable existence is 1910 Census in Iowa. Possible 1920 in South Dakota, McCook County. Does anyone have any information or know of this person?