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

Professional portrait of Oscar Chapman.

Secretary of the Interior Oscar Chapman poses for a photo at his desk.

Professional portrait of Oscar Chapman.

Portrait of Assistant Secretary of the Interior Oscar Chapman.

Oscar Chapman sits behind his desk.

Professional portrait of Oscar Chapman.

Secretary of the Interior Stewart Udall (left), Senator Clinton P. Anderson (second from left), and Oscar Chapman (second from right) with unidentified men.

Left to right: Under Secretary of the Interior Oscar Chapman, Ann (Mrs. Oscar) Chapman, and Palmer Hoyt, Editor, Denver Post at an unidentified location.

Photograph of a portrait of Secretary of the Interior Oscar Chapman by Alfred Jonniaux.

Senators and former Secretaries pose for a picture during a luncheon in honor of Harry S. Truman in the Secretary of Senate's office. Seated, left to right: Senator Scott Lucas; Senator Carl Hayden; Speaker of the House Sam Rayburn; Harry S. Truman; and Senator Lyndon B. Johnson. Standing, left to right: Senator Mike Mansfield; Senator Thomas Hennings; General Harry S. Vaughan; Secretary of the Senate Felton M. Johnston; Congressman Carl Albert; unidentified; Under Secretary of Agriculture Charles S. Murphy; David Lloyd, Assistant to Harry S. Truman; and Oscar Chapman.