The James M. Duncan, Jr. Branch Library opened on Commonwealth Avenue in 1969. The Duncan Branch Library serves residents of the Del Ray neighborhood and surrounding areas. This branch was named after James M. Duncan (1897-1967), who served as Chief of the Alexandria Fire Department 1924-1947, member of City Council 1949-1967, and member of the Alexandria Library Board 1950-1967. In 2005 the Duncan Branch Library underwent renovations and became the first City of Alexandria government building to have a “living” roof – a Green Infrastructure approach to reducing stormwater runoff and pollution in local waterways.