- Business history
- Community histories
- Fine art & museum collections
- Leeser correspondence
- Printed books
- Trade & advertising

The Kaplan Collection documents commercial, social, religious, political, and cultural ties that connected Jews and the general public from the colonial era through the nineteenth century.
The Kaplan Collection, donated to Penn in November 2012, is considered the most important private collection of its kind. It consists of over 11,000 individual items that document an astonishingly broad range of commercial, social, religious, political, and cultural ties that connected Jews and the general public from the colonial era through the onset of mass migration at the end of the nineteenth century. Visit the Kaplan Collection's website for more information.