Please note: the DHS Research Library will operate on a modified summer schedule from June 19-September 14, 2018 to accommodate new leadership and restructuring. Library staff will continue to assist visitors and provide reference, image reproduction, and research services during this time. We appreciate your interest, and look forward to resuming our regular hours in the fall.

2018 Research Library Summer Hours:
Monday, 11:00 am. - 7:00 p.m.
Tuesday, Wednesday - CLOSED
Thursday, Friday, 9:00 a.m. - 1:00 p.m.
Open the third Saturday of each month, 10:00 a.m. - 4:00 p.m.

Closed major holidays - click here for the Society's Calendar of Events including open research Saturdays.

Collecting and preserving Delaware materials for over 150 years, the Society has a rich and varied collection of books, ephemera, newspapers, serials, maps, manuscripts and photographs relating to the history of Delaware and its people. The Society's online catalog includes books, rare books, pamphlets, newspapers, maps, manuscripts, and photograph collections.  Click here for a brief listing of our Library Collections.

Visitors are welcome to use the library free of charge, but there are fees for photocopies, use of digital cameras, etc. - click here for details.

Before your visit, click here for library regulations to help prepare your research.

The library also holds a strong collection of materials for individuals doing genealogical research.  For more information on genealogy at the Society, please see Delaware Genealogy: A Guide to Research at the Delaware Historical Society

Would you like to be a library volunteer? - details

505 N. Market Street, Wilmington, Delaware 19801 - Specific directions and parking

(302) 655-7161