Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Mary Brennan lives in Santa Fe, New Mexico. She and her husband, Curtiss, moved next door to Dorothy McKibbin, the “Gatekeeper to Los Alamos.”

Brennan has fond memories of Dorothy, who ran the Santa Fe office at 109 East Palace for the Los Alamos National Laboratory. McKibbin hosted many project workers at her house for various social events, including thirty weddings.

The Brennans are the current owners of McKibbin’s house and still reside next door. 

Related Profiles

Astro Teller

Astro Teller is the co-founder of Alphabet subsidiary “X.” He is the grandson of Edward Teller, the famous physicist often considered the father of the hydrogen bomb.

William H. Zachariasen

Chicago, IL

William “Willie” H. Zachariasen was a physicist and consultant at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

Kevin McKibbin

Santa Fe, NM

Kevin McKibbin was the son of Dorothy McKibbin, known by many as the “Gatekeeper to Los Alamos”. McKibbin was born in 1930 in St.

John Coster-Mullen

John Coster-Mullen is a nuclear archaeologist and author of Atom Bombs: The Top Secret, Inside Story of Little Boy and Fat Man.