Joseph B. Bartek, Sr., & Mary (Kovarik) Bartek, had at least 12 children, possibly 13, that I am aware of. The children were: Jaroslav, Joseph B, Jr., John, Charles G., Josie, Emma, Frank E., Mary, Rudolph (Ralph) F., Henry, Phebe, Ludmilla and William.
Frank E. Bartek was married to Annie Fidler and had 6 children that I've found so far. They are: Charles, Milo, Edward, Leonard, Rose and Lorraine. If you need more information or would like dates, spouses and children, please let me know.