Who was the first female governor of Oklahoma?

Mary Fallin was the first female governor of Oklahoma, serving from 2011 to 2019. Her election marked a significant milestone in the state's history, as she was not only the first woman to hold the office but also a member of the Republican Party, making her the first female governor from that party in Oklahoma. Fallin's tenure included efforts to address various issues such as education reform, economic growth, and budget management, reflecting her commitment to state governance.

The other individuals mentioned were either involved in state politics in different capacities or did not serve as governors, which distinguishes Fallin as a pioneer in Oklahoma’s political landscape.