President Harry S. Truman (back of table, fourth from right) and members of the Committee on Interior and Insular Affairs, the House Public Lands Committee, and the Senate Committee on Public Works attend a luncheon in the dining room of the Department of the Interior. Also pictured: Secretary of the Interior Oscar Chapman (back of table, fifth from right); Senator Joseph O'Mahoney (back of table, third from right); Senator Zales Ecton (back of table, second from right); Congressman John R. Murdock (back of table, standing); and Appointment Secretary Matthew Connelly (back of table, left).