Hi! how are you?. Yes, lots of slovenians came to argentina. They came in two waves of inmigration. After the first great war and after de second one.
Look here in the page I have of status took from Sabonje Church I have information of those times.
I will try to be specific.
Antonius Sluga (Nativitatis 21/11/1850. Mortis 27/06/1930)
Married with Maria Bozni (09/11/1857 - 12/02/1936)
Copulation date 21/05/1873 Doesnt say names of sons or daughters. I can tell you the address of their house in the village. Antonius lived in Locus N 6 and Maria in N 15.
Ive been in the village last year and found my grandfathers house still there. Its a beatiful place near mountains and a perfect green with flowers everywhere.
Hope to be useful this information. Keep in touch.