Jessie Olive Thatcher Bost (December 16, 1875 – February 14, 1963) She was the first female graduate of Oklahoma State University.
Bost was born in Guthrie Center, Iowa, Her family moved to Stillwater in 1891, then part of Oklahoma Territory, and she enrolled in a university, then known as Oklahoma Agricultural and Mechanical (A&M) College, when it opened later that year.
She graduated in 1897, alongside two male students in the university's second graduating class.
After graduation, Bost worked as a public school teacher in Stillwater.
Bost remained involved with the university and became the first president of its Alumni Association in 1902 and the Half-Century Club in 1954.
The university named its first female dormitory "Jessie Thatcher Hall for Bost when it opened in 1925.