Hi Zlatica,
I finally found Pennsylvania GULA's by telephone today and have been on the phone most of the day with them, and they have been somewhat helpful. I think you are absolutely right; she very well may have come over just before Ellis Island opened its doors in 1892, but I'm not sure yet. I'm going to search under LEUKO, as you suggested. Hopefully!!! lol
Most of the family members say GULA is from Austria, but one of them said she heard it was Croatia. Isn't Croatia a far distance from Austria? That doesn't seem right.
Yvonne