Delaware Public Archives
Mabel Lloyd Ridgely Research Room
121 Martin Luther King Blvd. North
Dover, DE 19901
(302) 744-5000


All times 8:30am - 4:00pm except as noted:

  • Monday - Friday: 8:30am - 4:00pm
  • 2nd Saturdays: 9:00am - 4:00pm
  • Sunday: Closed
  • State Holidays: Closed
  • Event closures are listed here.

New Hours for the Research Room

Beginning on January 1, 2018, the Mabel Lloyd Ridgely Research Room at the Delaware Public Archives will be open on the First Saturday of each month from 1:00 p.m. to 4:00 p.m. Starting immediately, the Research Room is no longer open for the second Saturday of each month. The Monday through Friday hours for the Research Room remain the same, 8:30 a.m. to 4:00 p.m.




The Mabel Lloyd Ridgely Research Room at 360°

Panoramic ViewTake a 360° panoramic view of the Mabel Lloyd Ridgely Research Room.




Online Guide to Collections

Online Guide to ResearchThe Guide to the Delaware Public Archives was initiated in 1978 with funding from the National Endowment for the Humanities. Originally designed as a printed guide, the project evolved into an electronic finding aid for the entire collection of the of the Delaware Public Archives. Continue to the Online Guide to Collections

Collection Gateway

Collection GatewayYou can now search 400,000+ records, across 19 popular collections using the Collection Gateway. Once you find a record you can request a price quote for an original or print a detail sheet for quick retrieval for your next visit to the Research Room. Continue to the Collection Gateway

Delaware Library Catalog (Books and Publications)

Delaware Library CatalogBooks, 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

Rules and Regulations

Rules and RegulationsThe Delaware Public Archives (DPA) prohibits researchers from carrying boxes, brief cases, satchels, valises, purses or other containers into the Research Room. Researchers who have these items will use the storage lockers located in the entrance hall of the Research Room... More Rules and Regulations

Ask Andy Archive

Ask Andy ArchiveDo you have a reference question? Use our contact form or send us an email at aarchives@state.de.us.