John S. Foster Jr.

John S. Foster Jr.
Foster Jr., c. 1966
Under Secretary of Defense for Research and Engineering
In office
October 1, 1965 – June 21, 1973
PresidentLyndon B. Johnson
Richard Nixon
Preceded byHarold Brown
Succeeded byMalcolm R. Currie
Personal details
Born
John Stuart Foster Jr.

(1922-09-18) September 18, 1922 (age 102)
New Haven, Connecticut, U.S.
EducationUniversity of California, Berkeley (PhD)
OccupationPhysicist

John Stuart Foster Jr. (born September 18, 1922) is an American physicist, best known as the fourth director of Lawrence Livermore National Laboratory and as Director, Defense Research and Engineering under four Secretaries of Defense and two Presidents.