I'm trying to research my family tree and need some help locating information on my great grandparents, LUKA and MARA HANZERVACKI JANDROKOVIC.   I recently found their names on an application for a marriage license for their son, ANDRA JANDROKOVIC. My great grandparents had the following children (that I know of), ANDRA, JOHN (IVO or JOVAN), MARTIN, MARA and ANNA.  They might've had more, but these are names that I know are accurate. I, believe they resided in BJELOVAR, CROATIA. Although, on the application it lists AUSTRIA. I do not know anything about them, such as religion.  Any help is greatly appreciated.                                                                                                                                                        Sue JANDROKOVIC Rosar