In June of 1929, Anna Heisler, a midwife, was sentenced to Joliet Penitentiary for the March abortion death of Catherine Mau. Heisler had already done time in Joliet for the1919 abortion death of 43-year-old Lena Benich, but had been freed after winning an appeal.
Heisler had been born Anna Ondracek on January 29, 1878 in Bohemia. She emigrated to the US in 1905, and died in Chicago on June 5, 1930. She appeared to have been out of prison at the time, since the 1930 census lists her in the household with her husband, and not as a prison inmate.