I'm looking for any information on my father-in-law's father. My father in law was born in 1937 his dad is Harold Shank(s) and his mom in Ruth Shank(s). Their marriage did not last very long and I can't find him anywhere in the 1940 census but I do Ruth Shanks with my father-in-law and his sister and 3 half siblings (from a previous marriage). The only other information is that he was a lineman in Detroit. Can someone help me look in the right direction. Thanks.