A quick look shows that she claimed she was a naturalized citizen in the 1940 census. I can chalk that up to her immigration status (she declared she wanted to become a US Citizen) and that she was married at the time to a US Citizen. A lot of people think that's an automatic citizenship, but it isn't. It just makes living here easier. His grandpa became a US citizen, but moved to Canada to run a saloon/cat house. He decided to head back to Germany when the mounties did a crackdown on prostitution. Got married, but deported from Germany for failure to serve in their military as a teen (he was 16 when he came to the US)