Research Library

Due to the coronavirus and state guidelines, we are currently closed and unable to fulfill research requests.
Please contact us when DCHS reopens and thank you for your interest. 
Delaware County Historical Society (DCHS) encourages residents to visit the Research Library in-person to conduct research. Our Collection Services Manager will guide visitors through the process of how to search the collection and provide researchers with all of the resources available.  A list of DCHS resources are below.
DCHS’s Research Library is open during listed business hours. The research visit fee is $15 and provides you access to our entire collection and up to 10 pages of printed copies. An additional charge of $.50 per page will apply if more than 10 copies are needed. Join as a Friend/Member of DCHS for $30, (see memberships), and will have unlimited access to the collection throughout the year!
Any questions or inquiries should contact the Research Library at or 610-359-0832.
Online Research Requests
Researchers who are not able to access the Library, can complete the Research Request Form on-line. Please provide as much detail as possible about the nature of your request. Please note that this service is primarily for individuals out-of-state or those unable to visit DCHS in-person. A minimum of a  $25 donation to DCHS is required for on-line research requests. Please allow up to 4 weeks for the research to be completed.
To make a payment for a research request, please use the "Donate" button with your research request form. 
Click here to complete the research request form. 


  • ​4,500 books & rare documents

  • Dr. Anna Broomall Collection

  • Chester F. Baker Notebooks

  • Church Records

  • Birth Records

  • Borough Township Files

  • Census Information

  • Death records

  • Deeds/Indentures

  • Directories

  • Family Bible Collections

  • Genealogies

  • Handwritten Documents

  • Original Manuscripts

  • Maps & Atlases

  • Marriage Announcements and Death Notices

  • Microfilm

Chester Times

Delaware County Daily Times

Delaware County American

Delaware County Advocate

Delaware County Democrat

Ridley Park News

Rockdale Herald

Collection of other local and national historic papers

  • Pennsylvania Magazine of History and Biography

  • Pennsylvania Archives

  • Pennsylvania's Colonial Records

  • Photographs

  • Tax Records

  • Yearbooks