If you wish to learn more about the Delaware tribe, these are the books I used when I was doing research: 

1. The Delaware Indians. A History.  C.A. Weslager

2. Indian Paths of Pennsylvania. Paul A. W. Wallace

3. Indian Villages and Place Names in Pennsylvania. Dr. George P. Donehoo

4. Religion and Ceremonies of the Lenape. M.R. Harrington

5. Teedyuscung 1700-1763. King of the Delawares. Anthony F.C. Wallace

6. Two-Spirit People. Native American Gender Identity, Sexuality, and Spirituality. Edited by Sue-Ellen Jacobs, Wesley Thomas, and Sabine Lang. 

7.  William Penn's Own Account of the Lenni Lenape or Delaware Indians.