The Elfreth's Alley is a 501(c)3 nonprofit educational organization that uses the Alley as a lens to interpret the lives, lifestyles, and livelihoods of ordinary Philadelphians from the time of the City's founding through to the present day. The Association preserves the Elfreth's Alley National Historic Landmark District as a rare example of a once commonplace working class community from the late 18th and early 19th centuries.