"White Wings" on Parade, ca. 1896.

Pictured here are the White Wings: a brigade of street cleaners who were established by Street Commissioner Colonel George E. Waring Jr. in 1895. Waring treated the sanitation department as an army, mandating his workers to wear all white uniforms and caps. He believed that their white attire portrayed a sense of cleanliness, as much as they helped keep workers conspicuous while on the job, discouraging slacking off at the local saloon. These "White Wings" kept streets cleaner than at any previous time in the city's history. Regulation whites remained in effect until the 1930s (when someone finally decided that whites were not appropriate for street sweeping).