William Carl Geagley was a civilian observer at the Nevada Test Site during Operation Plumbbob from June 8, 1957 to June 30, 1957. Born July 21, 1890, Geagley graduated from Michigan State College in 1913 with a B.S. in Sciences and Agriculture. A high school science and agriculture teacher, he later worked as a chemical researcher and Chief of the Clinical Laboratory Division of the Michigan Department of Agriculture. In the 1950s he was appointed as a regional Civil Defense Coordinator for the Lansing, MI area.

Dr. Jacob Paz was born November 14, 1938 and grew up in an agricultural environment in Israel where he attended Kadoorie High School. After his graduation, Paz joined the Israeli army. He attended technical school for two years and started working for the Israel Atomic Energy commission in Dimona, Israel, making atomic bombs. Paz was accepted into University of California Davis, and moved to the United States to study veterinary medicine.

Kauffman was born in Denver, Colorado in 1914.

He was employed at the Reynolds Electrical and Engineering Co.