Hello, I am searching Ivkovic/Tokos family for my mother-in-law. She is seeking information about her grandparents. The only information I have is below and wondering if anyone could assist me in anyway. I am English speaking only and am struggling to interpret information on her behalf.

My mother-in-law is Ivanka Tokos, born in 10/9/37 to Stjepan Tokos and Mileva Ivkovic.

Stjepan Tokos was born in Vinkovci on 8/8/1908 and passed away on 8/8/1948. His parents were Ivan Tokos and Barbara Tokos. He was 1 of 12 siblings.

Mileva Ivkovic was born in Trstenik on 20/8/1909 and passed away in Belgrade 3/6/2000. Her parents were Oranga Ivkovic and Milentje Ivkovic.

I have attached my mother-in-laws birth certificate and would love to hear from anyone with information that may be related to Ivkovic/Tokos families.