Each year the Historical Society of Pennsylvania awards one Richardson Dilworth Fellowship for Law, Politics, and Reform. The fellowship supports one month of residency in Philadelphia for advanced, postdoctoral, and dissertation research on legal or political history topics, or on the history of reform movements. The stipend is $2,000. The Library Company's Cassatt House fellows' residence offers rooms at reasonable rates, along with a kitchen, common room, and offices with internet access, available to resident and nonresident fellows at all hours.
The Richardson Dilworth Fellowship program began in 2015–2016 academic year and is endowed by Dilworth Paxson LLP.
- Shira Lurie, PhD Candidate in History, University of Virginia, Politics at the Poles: Liberty Poles and the Popular Struggle for the New Republic
- Mary Freeman, PhD Candidate in History, Columbia University, Letter Writing and Politics in the Campaign against Slavery in the United States, 1830–1870
- Jack Furniss, PhD Candidate in History, University of Virginia, States of the Union: The Political Center in the Civil War North