Your ancestral families are ethnic Croats &Bunjevci

http://en.wikipedia.org/wiki/Bunjevci

http://www.personal.ceu.hu/students/98/Bojan_Todosijevic/staro/ece-bunjevci/Bunjevci.pdf

Both families still reside in subotica area.

http://www.rodoslovlje.com/en/documentation/given-names-nicknames-and-surnames-vojvodina

For vital records research see here:

http://www.rodoslovlje.com/en/forum/vojvodina/kalocsa-roman-catholic-archdiocese-e-archive

and here:

http://www.rodoslovlje.com/en/forum/general-forum/municipal-offices-serbia-civil-vital-records

yugaya thanks for responding so fast, is there anyway to get more info on Rozika Bosjnak and my grandfather Josip Matatics besides short of calling the municipal office in Subotica? If need be i will call them but otherwise i wanted to try and see if Rozika had any brothers or sisters and the name of her mother and father. Same as my grandfather Josip matatics i would like to know if he had any brothers or sisters and his mother and father.

That would depend - if you do not know the names of her parents and their birth year &exact  place of origin or the church where they baptized their children, then obtaining the birth certificate of your mother, which will have that information, would be the first step.

You can contact the Roman Catholic diocese in Subotica :

http://www.suboticka-biskupija.info/index.php

and you can post on local websites - this is the official such page, from the municipal web presentation where people post *loooking for relatives*:

http://www.subotica.rs/cgi/guestbook/list.php?lg=sr

to add a comment :

http://www.subotica.rs/cgi/guestbook/form.php?page=1&lg=sr

Try the most followed Subotica fb pages :

https://www.facebook.com/grad.subotica.3?ref=nf_fr

https://www.facebook.com/subotica.grad.na.dlanu?sk=wall

All of these things I recommend you best  do in Serbian /Croatian language to receive reply.

thankyou again i very much appriciate the help and leads, unfortunately my mother doesnt have her birth certificate and she doesnt remember very much of her very younger years back in subotica. So i guess trying to call or email the Roman Catholic diocese is my best bet to try and get any kind of info then.