Washington, D.C., circa 1921. "1804 Kearney Street N.E." If only these walls could talk. National Photo Company Collection glass negative. View full size.

October 7, 1921. "Dog funeral." Aspen Hill Cemetery, final resting place for one Boots Snook, "dear old pal" of Mrs. Selma Snook of Washington. Today's funeral is for the recently departed Buster. Harris & Ewing glass negative. View full size.

March 1864. "Brandy Station, Virginia. Scouts and guides of the Army of the Potomac." From photographs of the main Eastern theater of the war, winter quarters at Brandy Station. Standing, left to right: James Doughty, James Cammack (?), unknown, Henry W. Dodd, unknown, unknown. Seated: John Irving, Lt. Robert Klein of the 3d Indiana Cavalry, Dan Cole. On ground: Dan Plue, Lt. Klein's son, W.J. Lee, unknown, Mr. Wood, Sanford Magee, John W. Langdon. Wet-plate glass negative, photographer unknown. View full size.

"Washington Times. 4721 Georgia Avenue N.W." Circa 1920 comes this picture taken for a real-estate ad. National Photo Co. glass negative. View full size.

The parts department of Semmes Motor Company in Washington circa 1925. National Photo Company Collection glass negative. View full size.

Washington, D.C., circa 1919. "Walter Reed Hospital flu ward." One of the very few images in Washington-area photo archives documenting the influenza contagion of 1918-1919, which killed over 500,000 Americans and tens of millions around the globe. Harris & Ewing glass negative. View full size.

Circa 1920. "Emergency Hospital group." Uniformed Authority Figure Week continues at Shorpy! Harris & Ewing Collection glass negative. View full size.