Life Magazine

General Leslie R. Groves and Dr. J. Robert Oppenheimer lean over a desk and glance up from a file of paperwork. A wall-sized map showing the Arctic Ocean is behind them.

Portrait of diplomat and author Charles W. Thayer. Seen in this view smiling and holding a pipe. Portrait is a Life Magazine print.

President Harry S. Truman (right) talks with his friend, James Pendergast (left), while others crowd around them. This photograph was taken during the President's trip home to Independence, MO.

Former President Harry S. Truman standing in front of the Truman Library, shortly before its dedication. Truman's car, a 1957 Dodge Custom Royal Lancer, is parked out in front of the Library.

Photo from LIFE Space Tour of NASA's Ames Research Center at Moffett Field, California. Photo appears to be of some sort of radio or transmitter.

Photo of a light spectrum from LIFE Space Tour of NASA's Ames Research Center at Moffett Field, California.

A group picture of General Harry Vaughan, Press Secretary Charles Ross, Appointments Secretary Matthew Connelly and Admiral James Foskett at the Hotel Muehlebach, Kansas City, Missouri, during the grave illness of the President's mother. From: Charles Ross Papers, 12x18 Metal Album.

Photo of Jack Romagna and Press Secretary Charles Ross (seated at window) at the Hotel Muehlebach, Kansas City, Missouri, during the grave illness of the President's mother. From: Charles Ross Papers, 12x18 Metal Album.

Two adopted granddaughters of Charles G. Ross, were at the train when President Harry S. Truman's train made a brief stop in St. Louis, Missouri. A smiling Mr. Truman is shown with Ross as he holds the babies. From: Charles Ross Papers, 12x18 Metal Album.

Excellent photo of, Left to right: Matthew Connelly, President Harry S. Truman, and Charles Ross in casual attire at Key West as they talk together by a tree. From: Charles Ross Papers, 12x18 Metal Album.