O'Mahoney, Joseph Christopher, 1884-1962

From left to right: Senator Joseph C. O'Mahoney; Stuart Symington, Chairman of the National Security Resources Board; Walter S. Hallanan, Chairman, National Petroleum Council; and Secretary of the Interior Oscar Chapman at a National Petroleum Council meeting in the Department of the Interior conference room. All others unidentified.

From left to right: Senator Joseph C. O'Mahoney; Colorado Governor Lee Knous; and Secretary of the Interior Oscar Chapman at the Kiwanis Club of Denver luncheon at the Albany Hotel in Denver, Colorado. Those in background unidentified.

From left to right: Senator Joseph C. O'Mahoney; Maple T. Harl, Chairman, Federal Deposit Insurance Corporation; Charles Schoelzel, President, Kiwanis Club of Denver; and Barney Whatley at the Kiwanis Club of Denver luncheon at the Albany Hotel in Denver, Colorado.

Senator Joseph C. O'Mahoney (standing) speaks to the Bureau of Reclamation's Operation and Maintenance Regional Supervisors during a conference at the Department of the Interior. Also pictured: Assistant Secretary of the Interior William Warne (along wall, second from left); Secretary of the Interior Oscar Chapman (along wall, second from right); and Bureau of Reclamation Commissioner Michael Straus (left of O'Mahoney). All others unidentified.

Secretary of the Interior Oscar Chapman (standing) speaks to the Bureau of Reclamation's Operations and Maintenance Regional Supervisors during a conference at the Department of the Interior. Also pictured: Senator Joseph C. O'Mahoney (seated, right of Chapman). All others unidentified.

An unidentified man speaks to the Bureau of Reclamation's Operation and Maintenance Regional Supervisors during a conference at the Department of the Interior. Also pictured: Secretary of the Interior Oscar Chapman (along back wall, left); and Senator Joseph C. O'Mahoney (along back wall, right). All others unidentified.

Secretary of the Interior Oscar Chapman (standing) speaks to the Bureau of Reclamation's Operations and Maintenance Regional Supervisors during a conference at the Department of the Interior. Also pictured: Bureau of Reclamation Commissioner Michael Straus (left, against wall); and Senator Joseph C. O'Mahoney (seated, right of Chapman). All others unidentified.

Secretary of the Interior Julius Krug (standing) speaks during his induction ceremony in the Department of the Interior auditorium. Seated on stage, left to right: unidentified; Assistant Secretary of the Interior Oscar Chapman; unidentified; Margaret (Mrs. Julius) Krug; unidentified; Senator Joseph C. O'Mahoney; Ann (Mrs. Oscar) Chapman; unidentified; unidentified. All others unidentified.

Members of the Interior Committee with Clarence Forsling (right) after he was appointed Director of the U.S. Grazing Service. Also pictured: Senator Joseph C. O'Mahoney (center); and Assistant Secretary of the Interior Oscar Chapman (second from right). All others unidentified.

Members of the United States Senate Committee on Indian Affairs and others at the hearings regarding the nomination of William Brophy as Commissioner of Indian Affairs. Pictured: Assistant Secretary of the Interior Oscar Chapman (standing, left); and Senator Joseph C. O'Mahoney (seated, center). All others unidentified.