Hello! My name is Sergiu Ratz, I'm from Romania. My grand-grandfather worked in US between the World War I and II. He's name is Ion Mihu, he was born in Romania, in Tichindeal, province Sibiu. He returned to die in Romania in 1946 -1947 and I dont know anything about the period that he spend in US. I found out that there are sites that are specialized in that but I dont know which. Can anyone tell me how to find out what my g-g-grandfather did so many years in America? Thank you!