"Greek murder." July 1920. Two victims of a bloody altercation involving a hatchet and revolver that left three people dead in a rooming house at 809 Ninth Street in Washington. National Photo Company glass negative. View full size.

Washington, D.C., circa 1924. "Lord Baltimore Filling Station No. 6, Connecticut Avenue and Ordway Street N.W." View full size. National Photo glass negative.

1942. "Cemetery at edge of Romney, West Virginia." View full size. 35mm Kodachrome transparency by John Vachon for the Office of War Information.

A summer camp circa 1920 in the Washington, D.C., area. View full size. National Photo Company Collection glass negative, Library of Congress.

April 21, 1955. Inside the Rainbow Market in Larkspur, Calif. After my father sold his store in San Francisco, he worked here in one of our home town's two grocery stores for a few years. That's him in a white apron at the end of the aisle. The exterior of the building can be seen here. My brother also took this shot while he was at it, also on 35mm Tri-X. View full size.

Boy Scouts at Gettysburg circa 1913 performing the time-honored camp ritual of water bucket to the head. View full size. George Grantham Bain Collection.

"Boy Scouts, Camp Roosevelt." July 9, 1925. Just try to make them talk. National Photo Company Collection glass negative. View full size.

July 9, 1925. "Boys Scouts at Camp Roosevelt." View full size. National Photo Company Collection glass negative, Library of Congress.

1912. "National Guard camp. Mount Gretna, Pennsylvania." View full size. National Photo Company Collection glass negative.

August 1940. "Local talent makes music on a Sunday afternoon under the soldiers' monument. Provincetown, Massachusetts." View full size. Medium-format safety negative by Edwin Rosskam for the Farm Security Administration.

The clarinetist Ross Gorman and daughter circa 1920 in New York City. 5x7 glass negative, George Grantham Bain Collection. View full size.

"Tombs Prison N.Y." And Manhattan Criminal Courts Building in November 1907. 8x10 glass negative, George Grantham Bain Collection. View full size.

"Statuary Hall, U.S. Capitol." Circa 1908 time exposure with a tour group of ghosts. View full size. 8x10 glass negative, George Grantham Bain Collection.

"Crowell's Garage, New York and Florida Aves." Detailed view of a Washington, D.C., service station circa 1921. View full size. National Photo glass negative.

House Chamber of the Capitol circa 1908, with a quorum of ghosts in this time exposure. View full size. 8x10 glass negative, George Grantham Bain Collection.