(with H. Bekker of 23 Jun 1925), 1925 Jun 20 Box 20, Folder 265 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with Hedi Diegel autograph note, [1931 Dec 19] Box 3, Folder 28 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
(with Heinrich Berl of [23 Jun 1925]), 1925 Jun 23 Box 2, Folder 16 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with Heinz Becker-Trier autograph letter signed (7 Jun 1928) to Bühnenvolksbund, Berlin, 1928 Jun 7 Box 1, Folder 10 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with Hella Prochownitz Wolff autograph calling card signed, 1912 Sep 9 Box 19, Folder 243 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with Hella Prochownitz Wolff autograph picture postcard (8 Sep 1918), 1918 Sep 8 Box 19, Folder 244 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with HPW, A. Hellwig, M. Keller, F. Kelm, W. Schneider, F. Seidel C. Wieder, F. Wittge, [1906 Oct 11] Box 19, Folder 242 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with H. Rasch, H. Springer, 1916 Jun 7 Box 15, Folder 189 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with Ilse Berend-Groa clipping "Die Träne des Zinnsoldaten" (no date), 1925 Oct 5 Box 1, Folder 11 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…
with International Gesellschaft für neue Musik brochure, 1924 Jun Box 16, Folder 211 Bookmark Collection Context Yale University -Irving S. Gilmore Music Library The Paul Bekker Papers, bulk 1883-1937…