Hometown: McAlester, Oklahoma; Pittsburg County
Birthplace: Texana, Oklahoma
Kirksey was stricken with polio at age 12 but he recovered without being disabled by paralysis. Nix attended Eufala High School. He attended Southeastern State College ( Southeastern Oklahoma State University) in Durant. He attended Oklahoma University law School and served as president of his law class. Nix was viewed as a successful trial lawyer for 15 years in State, Federal and Industrial Courts.
Nix was elected a total of 16 years to the Oklahoma Legislature, both the House and Senate. In 1940 Nix was elected to the Oklahoma House of Representative from McIntosh County and served in this capacity until 1946 when he moved to McAlester and formed a law partnership with George Hill. In 1949 he was elected to the Oklahoma House of Representatives from Pittsburg County. In 1950 he moved to the state senate and was re-elected to this body in 1954. Nix served as Majority Floor Leader under Robert S. Kerr.
He defeated Dick Jones in the 1956 election for a seat on the Court of Criminal Appeals, and served on the court 12 years when he retired in November, 1971. He was presiding judge three terms Several of his decisions were published in Judicial Hiqhlights Of America. He was a member of the Baptist Church and a Mason.