The state legislature met in Oklahoma City, in regular session from January 4 to April 2, 1921, and in special session from April 25 to May 21, 1921, during the third year of the term of Governor James B.A.

[2] In 1920, Bessie McColgin, a Republican, became the first woman elected to the Oklahoma House of Representatives.

[3] Lamar Looney, Oklahoma's first female state senator and a Democrat, was also elected in 1920.

[4] Impeachment charges were brought against lieutenant governor in the Oklahoma House of Representatives, but not sustained by the state senate.

T. C. Simpson served as the President pro tempore of the Oklahoma Senate and George Blaine Schwabe served as the Speaker of the Oklahoma House of Representatives.