A history in Sum  150 Years of Mathematics at Harvard (18251975), by Steve Nadis and ShingTung Yau 
Clark Elliott  Bibliography on the History of the Sciences at Harvard (16361945) 
Timeline  About the early teaching of Mathematics at Harvard 
Named Chairs  Named Chairs 
Department directories  Scanned Directories, 19872014 
Garrett Birkhoff  Mathematics at Harvard, 18361944 
Garrett Birkhoff  The rise of modern Algebra, 19361950 
Lao Genevra Simons  Fabre and Mathematics and other Essays 
Lao Genevra Simons  Bibliography of Early American Textbooks on Algebra 
Lithographs  Old Lithographs of Harvard 
Maps  Old Maps of Harvard 
Postcards  Old Postcards of Harvard 
PhDthesis  PhD thesis since 1873 
Old Thesis  Old math thesis of Harvard 
Models photos 2006  Model collection of the department 
Models photos 2012  Model collection of the department 
Views of Harvard  A pictorial record to 1860 
Howard H Aiken, Harvard and IBM  "Science at Harvard University: historical perspectives" 
J.Coolidge's article  Mathematics at Harvard, 18701928 
S. Battersons article [PDF]  Bocher, Osgood, and the Ascendance of American Mathematics at Harvard (AMS) 
ICM 1950  Information and links on ICM 1950 at Harvard and MIT 
S.E.Morison, Harvard College in the 17'th century 
Mark I  Manual for Mark I computer 
Harvard University Press, 1946 

Charles Haskins  Harvard College in the 17'th century, Graduate School of Arts and Sciences 
Photo of 1936  42. Summer Meeting of the Mathematical
Organization of America, Cambridge, 1936 