Silver Spring, Maryland. Typing class at Montgomery Blair High School in 1935. 5x7 safety negative, National Photo Company Collection. View full size.

"District of Columbia. Washington Loan & Trust building." A street scene circa 1907, possibly on Flag Day. National Photo glass negative. View full size.

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"Baltimore Fire of 1904. General view of South Baltimore." National Photo Company Collection glass negative, Library of Congress. View full size.

"Great Baltimore Fire of 1904. Fighting the fire on Baltimore Street." The first in a series of photographs from the fire, which burned for two days in February 1904, consuming much of downtown Baltimore. National Photo Company Collection glass negative, Library of Congress. View full size.

July 1919. "Walter Reed outing at Chesapeake Beach, Maryland." National Photo Company Collection glass negative, Library of Congress. View full size.

Washington, November 5, 1925. "National Apple Week at Walter Reed Hospital." National Photo Company Collection glass negative. View full size.

"Fifth Avenue and Forty-Second Street, New York." Circa 1908, horses and motorcars shared the streets. Detroit Publishing glass negative. View full size.