Thank you so much for filling in the gaps!
You and my wife are second cousins once removed :)
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if you want to talk more about the Bis family (Sroka family is only related to us by marriage).
Is baby stephanie your aunt, Klara and Frank's daughter? Sorry about both your grandparents not living long enough.
One thing you will find interesting is that Klara and Josephine had a third sister, and she is one who went to Canada. Josephine lived her whole life in Youngstown, OH, and died and old lady in 1976. In fact, there were four Bis sisters altogether. I think the fourth one went to France.
Do you have an approximate year and place of Klara's death? Did they always live in Passaic, NJ, or did they move about a bit?
Sroka is Polish for magpie, pretty close to blackbird as you said.
Sroka is a Jewish name. The Bis were almost certainly Polish Catholic. I think Frank may have converted to Catholicism to marry Klara. I think it was typical in mixed families for the husband to convert to wife's religion. Josephine's son was raised Catholic and converted to Ukrainian Orthodox and was excommunicated by the Catholic church.
Again, thank you for making the connection.
I wonder if you have any photos of Klara, perhaps with her sisters, or know anything about their parents and hometown. Their father was Jan, according to Josephines's obituary, and that's all I know. Their hometown was most likely Pyznica.
Not sure if your parents or aunts and uncles are alive and have any records or memories. I would love to hear more about Klara and, perhaps, her sisters, especially Josephine.