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

Under Secretary of the Interior Oscar Chapman (at podium) gives the address at Hyde Park, New York during Memorial Day services at President Franklin D. Roosevelt's gravesite. All others unidentified.

The 61st birthday breakfast party for A.B. Hirschfeld at the Statler Hotel in Washington, D.C. Back row, standing, left to right: Barnet Nover; Emil M. Schneider; Edward Jacobson; Earl R. Howsam; Maurice Bisgyer; Moses E. Smith, Superintendent, Denver Mint; Dr. Neal Bishop; Secretary of Agriculture Charles F. Brannan; Edward E. Grusd; A. B. Hirschfeld; Wayne N. Aspinall; Harry A. Zinn; Judge Norris C. Bakke; and Phil J. Rodgers; Seated, rear, left to right: LaMoine M. Dowling; and Under Secretary of the Interior Oscar Chapman. Seated, front, left to right: John H. Marsalis; John J.

Under Secretary of the Interior Oscar Chapman (left) and Bureau of Reclamation Commissioner Michael Straus (second from left) walk down the hallway during an unidentified event in the Interior building. All others unidentified.

Under Secretary of the Interior Oscar Chapman speaks at the American Petroleum Institute convention in Chicago, Illinois.

Newton Drury, National Park Service Director (left), Under Secretary of the Interior Oscar Chapman (center), and an unidentified man view a display at the Department of the Interior during the Interior's centennial anniversary celebration.

Under Secretary of the Interior Oscar Chapman (center) with two unidentified men at the American Petroleum Institute convention in Chicago, Illinois.

Under Secretary of the Interior Oscar Chapman speaks at the American Petroleum Institute convention in Chicago, Illinois.

From left to right: Newton Drury, National Park Service Director; Secretary of the Interior Julius Krug; and Under Secretary of the Interior Oscar Chapman at the Department of the Interior centennial anniversary celebration.

Under Secretary of the Interior Oscar Chapman (second from left) and Bureau of Reclamation Commissioner Michael Straus (third from right) examine a large certificate at an unidentified event in the Interior building. Also pictured: Assistant Secretary of the Interior C. Girard Davidson (second from right); and Administrative Assistant Secretary of the Interior Vernon Northrop (right). All others unidentified.

Under Secretary of the Interior Oscar Chapman (left) and Bureau of Reclamation Commissioner Michael Straus (right) at an unidentified party in the Interior building. All others unidentified.