Anna Eleanor Roosevelt's response to invitation from Ellen Ballon
Letter from Edna Ferber to Ellen Ballon, Sally Ryan, and Ralph Gustafson
Letter from Josef Hofmann to Ellen Ballon
Letter from Lotte Lehmann to Ellen Ballon
Correspondence sent by Florence Jessie Murray to Alexander Murray
Correspondence between Florence Jessie Murray and E.P. Dutton & Co., Inc. and the New Yorker magazine
Ronald St. John Macdonald's correspondence with Sienho Yee and Wang Tieya
Correspondence between Theodore Lidz and Alexander Leighton
Correspondence between Movie Makers magazine and Alexander Leighton
Correspondence with Adolf Meyer
Two letters from Paul A. Freund, Harvard Law School
Correspondence from Erwin Griswold, Dean, Harvard Law School
Correspondence with Columbia University President Grayson Kirk regarding Kirk's memorial address for John F. Kennedy