National Park Service

Under Secretary of the Interior Oscar Chapman (standing, left) hands an award certificate to an unidentified man during a ceremony in the Department of the Interior auditorium. Also pictured: Assistant Secretary of the Interior William Warne (second from left); and Secretary of the Interior Julius Krug (third from left). All others unidentified.

From left to right: Representative Fred Crawford of Michigan; Under Secretary of the Interior Oscar Chapman; Antonio Fernos-Isern, Resident Commissioner of Puerto Rico; unidentified woman; Jesus T. Pinero, Governor of Puerto Rico; and Irving Silverman are at the White House to attend the signing of an amendment to the Organic Act of Puerto Rico.

Carlton Skinner, Director of Information, Department of the Interior (left) and Under Secretary of the Interior Oscar Chapman (second from left) talk with unidentified men at a Christmas party in Skinner's office.

President Harry S. Truman gives his radio address announcing victory in Europe over the Germans.

Secretary of the Interior Oscar Chapman (left) crowns Marilyn O'Neill as the President's Cup Regatta Queen. From: Oscar Chapman Scrapbook

Secretary of the Interior Oscar Chapman (left) with two unidentified people at the Jefferson-Jackson Day Dinner in the National Guard Armory in Washington, D.C. From: Oscar Chapman Scrapbook

Secretary of State Dean Acheson (left) and Secretary of the Interior Oscar Chapman (right) sit at the head table with an unidentified woman at the Jefferson-Jackson Day Dinner at the National Guard Armory in Washington, D.C. From: Oscar Chapman Scrapbook

President Harry S. Truman (right) shakes hands with Frank McKinney, Chairman of the Democratic National Committee at the Jefferson-Jackson Day Dinner at the National Guard Armory in Washington, D.C. Also pictured: Eda (Mrs. Charles) Brannan, wife of the Secretary of Agriculture (second from left); and First Lady Bess Truman (second from right). From: Oscar Chapman Scrapbook

View of the guest tables at the Jefferson-Jackson Day Dinner at the National Guard Armory in Washington, D.C. From: Oscar Chapman Scrapbook

From left to right: Ann (Mrs. Oscar) Chapman, Attorney General J. Howard McGrath, Alice (Mrs. Dean) Acheson, President Harry S. Truman, and First Lady Bess Truman at the Jefferson-Jackson Day Dinner at the National Guard Armory in Washington, D.C. From: Oscar Chapman Scrapbook