Robert Adison Jackson went to West Minister College and then graduated from Pennsylvania State University in 1919 as a geologist. He came to Pueblo, Colorado in 1923 and was licenced as an engineer in 1928. Jackson worked in Walsenburg, Colorado for five or six years and then went to the CF & I Denver office in 1936. In 1946 he moved to Arkansas until 1961. Jackson retired in 1964.