I'm seeking information on a John Russell Miller who was born 4 October 1892 in Chester County, Pennsylvania; he was the son of Daniel Elwood Miller and Mary Jane Trythall. I've got him on the 1900 census with his uncle, and I've got his World War I Draft Registration Card, June 5, 1917; but, after that, I can't seem to find any trace of him. There is a John Miller on the Social Security Death Index with the same birth date, died May 1973, last residence at Pottstown, Montgomery, PA. This is a possibility. The SSN was issued before 1951 in California.