Roko,
Just found your reply. Petar was born in 1882 his 1918 US Army Draft notice has him born in Austria of Croatian desent. I have not been able to find out anything on Jillian other than she is of Croatian Descent. I was always told that we were of Serbian descent. Petar ended up in Omaha Nebraska were a large group of Serbians seemed to end up. The name Vojvodina came up in a document relating to his family history.