My ggm Zalli Schwartz (Klein) was from Mateszalka. As far as I know she was adopted by the Klein family, she would have been born around 1870. Zalli married Herman, later moving to Nyirmada, had Joseph,Bernard, Sari, Regina, Irene, Pauline, Freida. Regina married one of her Klein uncles (adopted- so I guess it was OK), they had a son Andras and lived in Satoraljaujhely...all three perished in the Holocaust. As did, Herman, Freida and Joseph.Zalli died pre-WWII.
Before WWII, Pauline moved to Philadelphia and married Abe Becker, Sari (my Gm) moved to Canada and married Jeno Hermann, Irene moved to Phili and married ?? Mayer, followed by Bernard after surviving the Holocaust.
I do not know much more about my ggm Klein's family, just wondering if there is a connection.