Hopsicker 2010, pp. 138–139. Hopsicker, Peter M. (2010). "Defying the Restrictions: The Adirondack Mountain Club Answers the "Jewish Question"". New York History. 91 (2): 124–145. JSTOR23185106.
Hopsicker 2010, p. 143. Hopsicker, Peter M. (2010). "Defying the Restrictions: The Adirondack Mountain Club Answers the "Jewish Question"". New York History. 91 (2): 124–145. JSTOR23185106.