Hotel sales promotion manager Elmo Hughes Ellsworth was born in Safford, Arizona in 1911. He attended George Washington University Law School for a year until his job required him to move to San Francisco, California where he worked in sales promotion, publicity and theaters. He married Charlotte Rowberry in 1936 and a few years later they moved to the Las Vegas, Nevada. There he began working in the Security and Public Relations Department of the Basic Magnesium Company.

JMA (Jack Miller & Associates) was established by Jack Miller (1914-1999) in 1945 and is one of the oldest architectural firms in Las Vegas. Jack Miller came to Las Vegas in 1942 to assist in the design of the Basic Magnesium Plant in Henderson. As one of only a few architects working in Las Vegas after the war, Miller was able to establish a thriving practice designing all types of buildings: schools, residences, commercial and government buildings, hospitals and the original Stardust Hotel.