The names of Andrew Carnegie and Henry Clay Frick are well known in New York City and beyond for Carnegie Hall and for the Frick Collection. Though the institutions built by these two steel magnates are important to the city’s cultural identity, the organization built by their lesser known (but just as wealthy) associate, Henry Phipps, has had and continues to have, a more material effect on the lives of New Yorkers. His legacy, Phipps Houses, is the oldest non-profit developer of affordable housing, erecting its first buildings in 1906 and actively developing and managing properties today.