Peggy L. Bostian was born September 7, 1940 in Bellingham, Washington. Bostian has two children, Troy Michelle Bostian and Bonni Lyn Bostian.
Bostian's affiliation with the Nevada Test Site was at Reynolds Electrical & Engineering Company (REECo) and EG&G Energy Measurements. Bostian also worked part-time at the Atomic Testing Museum.