North Hertfordshire Museums
http://www.north-herts.gov.uk/index/discover_nhdc/art_culture_and_heritage.htm
Note: the original link has changed and the following description is no longer accurate
This site contains details of the Hitchin Museum and the Letchworth Museum.
The Hitchin Museum site has the following research resources
Local county and town maps 1607-1970
Local newspapers and scrapbooks
Photographic prints of streets, buildings and social gatherings
Other assorted information on local clubs, societies, religious groups, public utilities, local government, overseers rate books, diaries, educational history, pamphlets, prescription books, military and fire brigade documents.
It also has several downloadable files including the Hitchin entry of the 1794 Universal British Directory
Hollow Lane (buildings demolished in 1930's), Hitchin, by E A Phipson
Page updated February 2007