Oral history interview with Gerardo Topacio, Philomena Topacio, and Teresa Prezgay conducted by Claytee D. White on April 13, 2018 for the Boyer Early Las Vegas Oral History Project. In this interview, Gerardo discusses his early life in Manila, Philippines. He remembers the attacks in Pearl Harbor on December 07, 1941, the Japanese and Philippines conflict, and immigrating to the United States. Gerardo talks about his employment with Edgerton, Germeshausen, and Grier, Inc. (EG&G) and working at the Nevada Test Site. Philomena recalls her career in the hotel industry and being a member of the Culinary Workers Union Local 226. The couple was joined by their daughter, Teresa Prezgay. Prezgay talks about her career as a math teacher and promotes the increase of women in science, technology, engineering and mathematics (STEM) fields.