1959 U.S. Secret Service special agent James O. Golden served on the security detail during Vice President Richard Nixon’s July 1959 trip to the Soviet Union, and with John T. Sherwood detected radiation aimed at the Nixon’s living quarters at Spaso House

1960 Maclyn Musser, the State Department security technician who first identified the Moscow Signal in the early 1960s.

August 19, 1969, U.S. Dept of State, Identifies silent weapon from an apartment.

X Firefighter, Jesse Beltran (Detection)

Geospy