Ritchie v. People (Illinois Supreme Court) 1895
The case challenging the constitutionality of the Illinois Factory and Workshop Inspection statute
Muller v. Oregon (United States Supreme Court) 1908
The United States Supreme Court case upholding a state statute limiting the number of hours women could work in laundries, factories and mechanical establishments
Ritchie v. Wayman (Illinois Supreme Court) 1910
The case brought to the Illinois Supreme Court after Muller v. Oregon.