I just found out my grandmother's name was Mina Stiassny - married to William Schliessler.
Mina might have had a brother named Seymour, I believe, who married Jennie. I never knew Seymour but remember 'Aunt Jennie', who was my father's aunt, very well. I always thought she was from Hungry but on a recent search found she and her husband came from Czechoslovakia. Perhaps that's where Mina came from as well.
I don't know how much this will help with your search, but I too am searching.