History of Arithmetic and Number Theory - A bibliography by D. Joyce.

Historical Essays in Number Theory - MSs by Peter Roquette.

Euler's Contribution To Number Theory - By Jamie Bailie, April 1999.

Mathematical Manuscripts at Trinity College Cambridge - Includes papers of Davenport, Hardy, Littlewood, Ramanujan.

Some Biographies of Past Contributors to Number Theory - Links compiled by Keith Matthews. Partly based on the MacTutor archive.

HINT - HIstory of Number Theory. Webliographies, preprints, links and material from the Hasse Nachlass.