According to My Grandmothers birth Certificate. Her father was Josef Mrazek and Mother was Marie Kalec. Josef came from Caslar, Bohemia. And Mary Came from Rozmital, Bohemia.

Thier daughter married a Julian Woronicz. Her name was Marie Milado Mrazek, (b. 1918 Chicago) Later name changed to Mildred Marie in 1936.
Thank You