Huber of Yugoslavia

My daughter's ancestors are :

Irene (Huber) Petrovich (b. 1893 - Yugoslavia)

Stella (Petrovich) Freno (b. 1921 - Ohio)

Jacqueline (Freno ?) Thomas - Steele (b. 1943 - Summit County, Ohio)

Desire any information on on Huber or Petrovich ancestors. All 3 women died with Huntington's Disease and we are trying to trace this as well. Anything is helpful and much appreciated.