DescriptionGrovesandChadwick830308.jpg English: James Chadwick (left) with Major General Leslie R. Groves, Jr. Date circa 1945 date QS:P,+1945-00-00T00:00:00Z/9
DescriptionGrovesandChadwick.jpg English: James Chadwick (left) with Major General Leslie R. Groves, Jr. Date circa 1945 date QS:P,+1945-00-00T00:00:00Z/9