Chapman, Oscar L. (Oscar Littleton), 1896-1978

President Harry S. Truman (front row, center), seated with Secretary of the Interior Oscar Chapman (front row, right) shakes hands with an unidentified woman at the rededication of Sesquicentennial Amphitheatre in Washington's Rock Creek Park as the Carter Barron Amphitheatre. The men in military uniform behind Truman are General Robert Landry (left) and General Harry Vaughan (right). All others are unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (at podium) addresses the Industry Advisory Council in the Department of the Interior auditorium. All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (second from left) and son James Chapman (right) at the National School Safety Patrol Parade on Constitution Avenue in Washington, D.C. All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman speaks at a meeting in the Department of the Interior auditorium. All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (second row, center) with unidentified people for a meeting in his office. From: Oscar Chapman Scrapbook

Ohio Congressman Thomas A. Jenkins plants a buckeye tree during Ohio's Arbor Day celebration at Hains Point in East Potomac Park in Washington, D.C. Also pictured: Secretary of the Interior Oscar Chapman (third from left). All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (right) helps an unidentified young boy plant a buckeye tree during Ohio's Arbor Day celebration at Hains Point in East Potomac Park in Washington, D.C. Also pictured, Ohio Congressman Thomas A. Jenkins. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (at podium) speaks at a meeting in the Department of the Interior auditorium. All others unidentified. From: Oscar Chapman Scrapbook

From left to right: Secretary of the Interior Oscar Chapman; President Harry S. Truman; and Head of the Office of Defense Mobilization Charles E. Wilson, prior to President Truman's address to the Industry Advisory Council at the Department of the Interior. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (at podium) gives a speech during an Arbor Day celebration at Hains Point in the East Potomac Park, Washington, D.C. The trees are buckeye trees planted along Ohio Drive. All others are unidentified.