1946
Paul M. Angle
A Shelf of Lincoln Books: A Critical, Selective
Bibliography of Lincolniana
1940
Harry E. Pratt
Lincoln: 1809-1839
1939
Harry E. Pratt
Lincoln: 1840-1846
1936
Benjamin P. Thomas
Lincoln: 1847-1853
1933
Paul M. Angle
Lincoln: 1854-1861
1930
Paul M. Angle
New Letters and Papers of Lincoln