Joel Barr on the roof of 65 Morton Street, Greenwich Village, New York, in 1944

Joel Barr (left) and Alfred Sarant in front of 65 Morton Street, Greenwich Village, New York, in 1944

KB-2 23 Sept. 1963 (Barr at right, standing)

Khrushchev at KB-2, 23 Sept. 1963 (Sarant to left of Khrushchev, Barr at right)

Left to right: Alexander Shokin, chairman of the State Committee of Electronic Technology (GKET); Alfred Sarant; Joel Barr. May 4, 1964.

UM-1NKh computer w/out case

Alexander Feklisov, Barr's KGB case officer

Admiral Aksel Berg, received reports from Rosenberg group during WWII

Joel Barr, Vivian Glassman, Louise Sarant, Alfred Sarant, early 1940s

Joel Barr in Lessburg, Virginia, 1995

Joel Barr and friend, Washington, summer 1994

"Scientific Center," Zelenograd, Russia

Alfred Sarant lecturing Soviet Navy officers, mid-1960s

Joel Barr at KB-2, 23 Sept 1963

Alfred Sarant in Russia