Harold David Cunningham was born December 10, 1926 in Arrey, New Mexico. Harold married Cynthia W. on June 7, 1949 and they had three children: Frank W., Catherine S., and Harold D. Jr.

Cunningham enlisted into the United States Army in 1944.

Cunningham graduated from New Mexico State University with a Bachelor of Science degree in 1948.

Cunningham was employed as the president and general manager of Reynolds Electrical & Engineering Co. (REECo) at the Nevada Test Site.

Robert Joseph Curran was born on August 31, 1934 in St. Louis, Missouri. Robert married Mary Ward on September 1, 1969 and they had three children: Kathlees (1970-06-29), Elizabeth (1973-08-26), and Patricia (1977-02-14).

Curran obtained a bachelor of arts degree in history and political science from the University of Missouri in 1956. Curran then obtained a juris doctor degree from the University of Missouri in 1962.