Naval Training Station, San Francisco, California. "Do Not Spit On The Floor, To Do So May Spread Disease" sign on the balcony edge of the Drill Hall floor of the Main Barracks, which is in use as an extemporized sleeping area.
San Francisco Chinatown circa 1900 A family servant walks an elaborately dressed young boy along a street in San Francisco's Chinatown -- possibly a holiday trip to visit relatives. Photograph by Arnold Genthe.
Boxing Match on a Ship With Spectators Wearing Masks
Boxing match on the U.S.S. Siboney's forecastle, while she was at sea in the Atlantic Ocean, transporting troops to or from France in 1918-1919. Spectators are wearing masks as a precaution against the spread of influenza.