The Mabel Lloyd Ridgely Research Room is open to the public Monday thru Friday from 9:00 am to 4:00 pm.

Researchers who wish to perform research on-site may make an appointment by calling (302) 744-5000 or emailing archives@delaware.gov.

Appointments are strongly encouraged. Benefits include:

  • A reference interview with an archivist to recommend collections associated with your research.
  • A reserved workspace.
  • A guarantee for a microfilm reader.
  • Assurance that records identified while making the appointment are ready to be viewed upon your arrival to maximize research time.

Please note:

  • To request an appointment please call (302) 744-5000 or email archives@delaware.gov.
  • The Delaware Public Archives is closed on Saturdays, Sundays, and State Holidays.

Walk-ins are welcome during hours of operation.

Delaware Public Archives Portal

You can now search our collections using the Delaware Public Archives Portal. Once you find a record of interest you can request a price quote for a copy or email the Research Room with the detailed reference for the item to be pulled prior to your appointment.
Discover how to utilize the Portal and begin your research here.

Delaware Library Catalog (Books and Publications)

Books, published volumes, and periodicals in the holdings of the Delaware Public Archives are now indexed in the Delaware Library Catalog. This online resource allows users to search through the collections of many different Delaware libraries and research facilities at once.
Continue to the Delaware Library Catalog

Heritage Commission Book List 

This is a list of the Heritage Commission Books that are also available for sale at the Delaware Public Archives Research Room. The Commission publishes books under the Delaware Heritage Press. If you would like to purchase a book by phone please call (302) 744-5000. These books are on display in the lobby of the Delaware Public Archives building and are available for purchase with cash, check, or credit card in the Research Room.
View the Heritage Commission Books List

Rules and Regulations

The Delaware Public Archives (DPA) prohibits researchers from carrying boxes, briefcases, satchels, valises, purses or other containers into the Research Room. Researchers who have these items will be asked to use the storage lockers located in the main lobby.
More Rules and Regulations

Ask the Archives

Do you have a reference question? Send us an email at archives@delaware.gov.