During World War II, Pratt served as Division Chief in the Office of Scientific Research and Development and was Chairman of the Radio Technical Planning Board 1945-1949, and in 1946 was an official observer of the Bikini atomic bomb tests.
Pratt Institute | Pratt & Whitney | Hugo Pratt | Renée Gill Pratt | Orson Pratt | Charles Pratt | A. Miles Pratt | Vaughan Pratt | Tim Pratt | Pratt Street | Parley P. Pratt | John Pratt-Johnson | Charles Pratt, 1st Earl Camden | Victoria Pratt | Richard Henry Pratt | Pratt & Whitney R-2180 | Pratt & Whitney J58 | Pratt & Whitney F135 | Pratt & Whitney Canada PT6 | Harold Douglas Pratt, Jr. | Guy Pratt | George Pratt (artist) | George Pratt | C. F. Nelson Pratt | Theodore Pratt | Spencer Pratt | Sarah Marinda Bates Pratt | Robert and Henry Pratt | Reg Pratt | Pratt & Whitney R-4360 Wasp Major |