« Secretary Jewell, Director Jarvis Announce 10 New National Historic Landmarks Illustrating America's Diverse History, Culture », Department of the Interior, (lire en ligne, consulté le )
flickr.com
To the Glory of God this foundation stone was laid on the first day of May in the Year of our Lord MD CCCC XVII and of the Reformation The Four Hundredth by the Right Reverend David Hummel Greer - Bishop of New York - Sometime Rector of this Parish (Foundation stone)
issn.org
portal.issn.org
(en-US) Christopher Gray, « Streetscapes/2 West 47th Street, the Office of R. O. Blechman; One Artist Preserves the 1912 Studio of Another », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
nytimes.com
(en-US) Christopher Gray, « Streetscapes/2 West 47th Street, the Office of R. O. Blechman; One Artist Preserves the 1912 Studio of Another », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )