Andrew W. Hockenhull was born in Missouri on January 16, 1877. He attended Southwest Baptist College in Bolivar, Missouri, received a bachelors degree from the University of Missouri in 1897, and studied law at the University of Texas. Hockenhull married Mame Drake of Bolivar, Missouri on November 20, 1901, and had three daughters. Hockenhull moved to New Mexico in 1908 and began practicing law in Clovis in 1909. He also served as assistant district attorney (1912-1916), and city attorney for six years. A Democrat, Hockenhull was elected Lieutenant Governor of New Mexico in 1930 and was re-elected 1932. He became Governor upon the death of Governor Seligman in September, 1933, and completed the term in 1934.