Suggestions for further reading about the history of Hertford College can be downloaded here.
If you are researching a student who matriculated at Oxford upto 1932 then Oxford University Archives will often have more detailed information about their academic career. From 1932 onwards this information is held by the University's Central Administration. Please contact the Degree Conferrals Office who may be able to help with your enquiry.
There is very useful advice and further information about other Oxford Colleges and the University in general on the Oxford Archivists'Consortium website.
Contact Oxfordshire History Centre for further information about the city of Oxford and its people.