• 1930, Guy C.H. Corliss, Doctor of Laws
• 1930, Vilhjalmur Stefanssen, Doctor of Laws
• 1931, Maxwell Upson, Doctor of Engineering
• 1932, John M. Hancock, Doctor of Laws
• 1933, Thomas F. Kane, Doctor of Laws
• 1933, John F. Douglas, Doctor of Laws
• 1934, J.F.T. O'Connor, Doctor of Laws
• 1935, Frederick Koch, Doctor of Letters
• 1936, John Burke, Doctor of Laws
• 1937, Sveinbjorn Johnson, Doctor of Laws
• 1938, A.G. Burr, Doctor of Laws
• 1938, Vincent J. Ryan, Doctor of Laws
• 1938, C.J. Hambro, Doctor of Laws
• 1939, Gudmundur Grimson, Doctor of Laws
• 1939, Crown Prince Olav of Norway, Doctor of Laws