Croatian Records Search

Hi All -

Amazing community here!

A few questions regarding croatian records

(1) I've hit a block with my ancestor (Anton Katic, born ~8/1891 in Ruzici). I'm having trouble locating the right parish and his baptismal records. If anyone has any suggestions, let me know!

(2) I suspect maybe his parish's records are not available online. Could folks recommend on how to proceed in this case?