I am researching the family of my great grandfather, Stanislaus Bartni(c)k who came from the Zasow/Zassow Parish in Poland near Debica to Grand Rapids MI. His wife was Katherine Kieras. They had 10 children:
Mary - b. in Poland, I found her baptism record, married Joseph Rusmus/Razmus
Frank - b. 1889, the same year the family came to Mich. died unmarried.
Hattie - married Joe Syrek, 4 children
Anna - married Adam Bukala - 6 children
Julia - married Anthony Kopczynski, 1 son, d. 1990
Josephine- married Frank Kopenski
Andrew - died single
Louis - died single
Joseph - married Thelma Hunt, one son
Rose - married Peter Stawasz

When Katherine died her obituary said she left one brother, but did not name him. Her parents were Frank Kieras & Maria Cichon. I am sure my information is incomplete & am hoping someone else can connect.