Harry S. (Harry Stephen) 1899- Ladd

• Daily Log I, 1940 - 1942
• Daily Log III, 1944-1945
• Diaries and Field Notes, 1915 - 1972
• Diaries and Field Notes, 1915 - 1972 (2)
• Eniwetok (K-1B II), January 13 - 28 1951
• I. Hawaii, Australia, New Zealand, 1925 - 1926
• III. West Virginia, Virginia, September 18 - October 18 1940
• Results of 1926 Field Trip to Vitilevu, Fiji, 1928 - 1929
• Strange Mine, Virginia, April 1941
• XII. Tahiti, Rarotonga, January 1934
• XIII. Lau Islands (Mango, Thithia, Fulanda, Ongea), February 20 - March 21 1934