Seymour Kattelson (February 11, 1923 – November 24, 2018), better known as Sy Kattelson, was an American photographer whose earliest work documents working class New Yorkers during the years immediately following World War II. He was an early practitioner of street photography and was associated with the Photo League from 1947 until its closing in 1951. His portraits, frequently taken without his subjects' awareness while traveling through the streets or riding the city's subways, convey the dignity of their lives as lived in public places. The depth of his photographs often comes from the tension between the grittiness of their urban settings and the contemplative sense of his subjects' as being lost within themselves.[1] He died in Rhinebeck, New York in November 2018 at the age of 95.[2]