Back in 1919, Walter Backerman’s grandfather delivered seltzer by horse and wagon on Manhattan’s Lower East Side. Today, Walter continues to deliver seltzer around the streets of New York. Some customers, like Mildred Blitz, have been on the family route for more than 50 years. When Walter’s grandfather drove his cart there were thousands of seltzer men in the city; today Walter is one of the last.

This story is part of our series, New York Works.