Norma K. Grimes Research Library

Tuesday through Friday, 11:00 am to 4:00 ​pm​

If your genealogy goes back several generations in Washington County, Pennsylvania, the Washington County Historical Society may be able to help you fill in those blanks in your family tree. Visitors to the LeMoyne House are also welcome to take advantage of our library resources for their genealogical research.  

We have an index of names for many of the various records for taxes, marriage, death, etc. found in the library and archive holdings.  If you are unable to visit, use the contact form below to send us the surname you are researching, and we will email you the entries found in the index for that name. There is no charge for this service. 


The Society offers a kit to get the do-it-yourselfer started on his or her own Washington County family lineage search.  The kit costs just $10 and is packed with helpful information. It contains a fact sheet on how to start genealogical research and a comprehensive summary of research collections in Southwestern Pennsylvania. It also contains a modern map of the county, a reproduction of an 1817 map of Washington County, a Pennsylvania migration map and an overview of county history written by noted historian Boyd Crumrine.


The Society's contracted research service taps into all available Washington County resources, including registered deeds and wills and orphan's court records back to 1781. The charge for this service is $30 per hour, or if you are a member of the Washington County Historical Society, $20 per hour. To download a contract, click below.