Dear Sheila York,
Thank you for posting your question to History Hub!
This page of the National Archives website has information to help you get started with your research: American Indian Records in the National Archives.
Records related to the Delaware Tribe are located at the National Archives at Fort Worth and the National Archives at Washington D.C.
For more information about these records, please contact the National Archives at Fort Worth (RM-FW) at email@example.com and the National Archives at Washington, DC - Textual Reference (RDT1) at firstname.lastname@example.org.
We hope this helps. Good luck with your research!
Welcome to History Hub
The Delaware Indians have a Facebook page you can call them or
send them a message. (1) The Delaware Nation Lenni Lenape | Facebook
Hope this helps.