Description: [caption id="" align="aligncenter" width="436" caption="Clerks of the Bureau of War Risk Insurance occupying the Natural History Building, now the National Museum of Natural History. On the request of President Wilson, the Board of Regents closed the museum to the public on July 16, 1918, making available to the government the ground and two exhibition floors (138,600 sq.
Description: [caption id="" align="aligncenter" width="408" caption="A Junior League docent explains exhibits in The Hall of Gems and Minerals, National Museum of Natural History, to visiting school children, 1950s, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 95, Box 28, Folder 44, Negative Number: MNH 142-A."][/caption]
Description: [caption id="" align="aligncenter" width="425" caption="Visitors including Safety Patrol Students, many of whom are dressed in their hats and belts representing the Automobile Club of Rhode Island, view exhibits in Transportation Hall, Arts & Industries Building, 1955, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 95, Box 28,