Joan Finney of Kansas

Joan Finney (February 12, 1925 – July 28, 2001) was an American politician who served as the 42nd Governor of Kansas from 1991 to 1995, the first woman to hold that office. She had previously served four terms as the Kansas State Treasurer from 1975 to 1991, the first woman to hold that office as well

https://en.wikipedia.org/wiki/Joan_Finney

After upsetting former Governor John W. Carlin in the 1990 Democratic primary for governor, Finney defeated incumbent Republican Mike Hayden in the general election becoming the first woman to defeat an incumbent governor in a general election in the United States.

In addition to being the State of Kansas's first female governor, Finney was Kansas' first Roman Catholic governor, and also one of the few pro-life Democratic governors of her time.

Taking office at age 65, she was also Kansas' oldest governor until Laura Kelly was inaugurated at age 68 in 2019.
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