This map shows original purchasers in the City of Philadelphia and surrounding area including Bucks County.

This map, from Davis's History of Bucks County, chapter VIII, shows the layout of the original Manor of Highlands with adjoining landowners.

This map shows the owners' names, lot size, and date of purchase of the original purchases in Bedminster Township.

From Records of the Land Office, Pennsylvania Archives website: This map shows 16 connected tracts of land located in Springfield, Haycock and Rock Hill Townships, each with the purchaser's name and warrant, survey, and patent dates of original purchases, as well as names and citations for later transfers.

From Records of the Land Office, Pennsylvania Archives website: This map shows 7 connected tracts of land located in Haycock and Tohickon Townships, each with the purchaser's name and warrant, survey, and patent dates of original purchases, as well as names and citations for later transfers.

From Records of the Land Office, Pennsylvania Archives website: This map shows 5 connected tracts of land located in Haycock Township, each with the purchaser's name and warrant, survey, and patent dates of original purchases, as well as names and citations for later transfers.

While this map's focus is on New Jersey, it also shows in great detail the towns and settlements in Bucks County.

This site has links to 1850 and 1857 maps of Bucks County townships with landowner names on file at the Library of Congress.

This link takes you to PennDOT's collection of historic county maps.  The Bucks County collection includes maps published from 1912 to 2005.

This link takes you to the Bucks County section of PennDOT's collection of township and borough maps in downloadable pdf format.

This map on the Historical and Museum Commission website shows the evolution of the boundaries of the Pennsylvania counties, from the three original counties in 1682 to the present time.