Jim L. Barker was an Oklahoma politician. During his tenure he was the only state representative to be elected four times as Speaker of the Oklahoma House of Representatives.

The Fortieth Oklahoma Legislature was a meeting of the legislative branch of the government of Oklahoma, composed of the Senate and the House of Representatives. It met in Oklahoma City from January 8, 1985, to January 6, 1987, during the term of Governor George Nigh. It was marked by the enactment of the Executive Branch Reform Act of 1986 and the establishment of the franchise tax in Oklahoma.