Williamson, Douwe Ditmars, Jr Box 1 Highlight Williamson, Douwe Ditmars, Jr Series II: Uncataloged Correspondence
Williamson, Douwe Ditmars, 1851-1918 Box 1 Highlight Williamson, Douwe Ditmars, 1851-1918 Series II: Uncataloged Correspondence
Williamson, Douwe Ditmars Memo re. his becoming manager Box 3 Highlight Williamson, Douwe Ditmars Memo re. his becoming manager Series III: Manuscripts and Documents