Commemorated on 2 plaques
Henry Mayers Hyndman 1842-1921 socialist leader lived and died here
13 Well Walk, Camden, NW3, London, United Kingdom where they lived and died (1921)
Headquarters of the Social Democratic Federation 1926-1937 founded by Henry Hyndman in 1884
54 Colebrooke Row, Islington, London, United Kingdom where they founded (1884)