Johanna Loeb’s philanthropic work extended to both Jewish and secular charities, such as the Home for Crippled Children, the Jewish Consumptive Relief Society of Chicago, the Home for the Jewish Friendless, and Chicago’s first Jewish Community Center. Her career not only strengthened the safety net for the disadvantaged throughout Chicago, but also illuminated the limitations and the potential that women’s philanthropic groups had in Jewish American society’s previously male-dominated community organizations.