Peter Henry Zavattaro was born on June 26, 1937, in Weehawken, New Jersey. Peter married Marie on July 15, 1961, and they had three children: Christina, Alicia, and Petra.

Zavattaro had a bachelor of science degree in engineering from Stevens Institute of Technology. He was general manager for Edgerton, Germeshausen, and Grier (EG&G) energy measurements for at least 37 years.

Jerome Alexander Zawada was born on April 28, 1937, in East Chicago, Indiana.

Zawada earned a bachelor of arts degree in College Seminary. He also studied theological studies and Spanish studies. He attended St. Francis College in Burlington, Wisconsin, and Christ the King Seminary in West Chicago, Illinois.

Donald Klinkner was born on November 28, 1935. He arrived in Nevada in November of 1950. He has worked at and managed various casinos. He married Kathleen Klinkner on April 15, 1983.