I know a lot about this family; all of my relatives on my mom's side are descendants of the Czudnochowski's and most of them have the surname of Kostreva and Leisner. There is acually a book published on the Czudnochowski's, written by one of my relatives, and that is where I got most of the information I have. The furthest back the family can be traced is to Georg Czudnochowski, of East Prussia, born in 1600. Gottlieb & Fredericka (Czudnochowski) Kostreva are my great-great grandparents and I have quite a bit of information on them. Their daughter, and my great-grandmother, Esther Kosteva (Leisner), is still alive and lives in Pound in Oconto County, Wisconsin. I'm not sure of the name Shettick, but I'm sure I could find it in the book. I'd really appreciate a response- I'd been searching for family members for a while and I'm very glad I found your post! Thanks a bunch~ hope to hear from you!