Information about Bucks County:

A source for many links, photography, resources - recommended

http://www.scenicbuckscounty.com

Organizations:

Maintaining Open Space in Bucks County -- Heritage Conservancy: Preserving our Natural and Historic Heritage; Accredited by the Land Trust Accreditation Commission.
http://www.heritageconservancy.org/

Mercer Museum -- Books: http://www.mercermuseum.org/publications.htm

Bucks County Historical Organizations:

Books on Google:

History of Bucks County from the discovery of the Delaware to the Present Time, William Watts Hart Davis, 1876