I am tracing a gggg-grandparent, Elizabeth Gentes, born probably in the 1830s. She married Phillip Petre, Petri orignally. Their sons Christian and Phillip Petre moved to the States in 1873; Christian lived in Cullman, AL and Buffalo, NY before moving to Brooklyn around 1902. I have a lot of info on Christian but am now looking for background on his parents. My understanding is that Gentes may be Alsatian in origin.