Robert Hahn was born on December 19, 1926 in Windsor, Colorado. Robert married Sally E. on April 15, 1950 and they had two children: Karl Robert and Kris Edward.

Hahn was enlisted in the United States Navy Reserve from 1945-1956.

Hahn obtained a bachelor of arts in mathematics from the University of Colorado in 1950.

Hahn began working as a department manager for Edgerton, Germeshausen, and Grier (EG&G) in 1957, eventually retiring in 1992.

Choreographer Tom Hansen worked on the Jubilee! production show at the MGM Grand Hotel and other stage shows in Las Vegas, Nevada with noted producer Donn Arden; famous for his work on the Lido de Paris, Hallelujah Hollywood, Jubilee! and others.