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

Secretary of the Interior Oscar Chapman (seated, right) approves a Bureau of Reclamation report advocating the diversion of water from the Trinity River into the Central Valley Project. Also pictured: Assistant Secretary of the Interior Dale Doty (standing, left). All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (at microphones) speaks at the Harold Ickes Memorial Service at the Lincoln Memorial. Harold Ickes was the former Secretary of the Interior Also pictured, front row: singer Marian Anderson (right); and Ann (Mrs. Oscar) Chapman (second from right). All others unidentified. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (left) speaks with Mrs. Jane Ickes (second from left) during the Harold Ickes Memorial Service at the Lincoln Memorial. Also pictured, front row: Harold McEwan Ickes (second from right); and Elizabeth Jane Ickes (right). All others unidentified. From: Oscar Chapman Scrapbook

Opera singer Marian Anderson (at microphones) sings for the crowd of attendees of the Harold Ickes Memorial Service at the Lincoln Memorial. Also pictured, platform, front row: Secretary of the Interior Oscar Chapman (left); and Ann (Mrs. Oscar) Chapman (second from left). All others unidentified. From: Oscar Chapman Scrapbook

From left to right: Conrad L. Wirth, Director, National Park Service; Secretary of the Interior Oscar Chapman; Mrs. Ann Chapman; and Edward J. Kelly, Superintendent of National Capital Parks pose in front of the carillon given to the United States by the Netherlands after the dedication ceremony in Washington's Meridian Hill Park. From: Oscar Chapman Scrapbook

President Harry S. Truman (at podium) speaks during the dedication in Meridian Hill Park for the carillon given to the United States from the Netherlands. Also pictured, front row: Queen Juliana of the Netherlands (left); Secretary of the Interior Oscar Chapman (second from right); and Mrs. Ann Chapman (right). Seated behind Queen Juliana is Admiral Robert Dennison. All others unidentified. From: Oscar Chapman Scrapbook

From left to right: Thomas "Cal" Miller, Superintendent, Mammoth Cave National Park; Elbert Cox, Regional Director, National Park Service; unidentified; Secretary of the Interior Oscar Chapman; and Conrad L. Wirth, Director, National Park Service outside the information booth at Mammoth Cave National Park in Kentucky. Park ranger unidentified. From: Oscar Chapman Scrapbook

From left to right: unidentified; Secretary of the Interior Oscar Chapman; and Thomas "Cal" Miller, Superintendent, Mammoth Cave National Park outside the information booth at Mammoth Cave National Park in Kentucky. Park ranger is unidentified. From: Oscar Chapman Scrapbook

Left to right: General Harry Vaughan, Admiral Robert Dennison, President Harry S. Truman, First Lady Bess W. Truman, and Secretary of the Interior Oscar Chapman leave the carillon dedication in Washington, D.C.'s Meridian Hill Park. All others unidentified. From: Oscar Chapman Scrapbook

President Harry S. Truman (left) and Secretary of the Interior Oscar Chapman greet a group of school children in Meridian Hill Park at the dedication for the carillon given to the United States by the Netherlands. All children unidentified. From: Oscar Chapman Scrapbook