Fenwick family of Sussex County, Delaware

Fenwick allied ancestry: ancestry of Thomas Fenwick of Sussex county, Delaware By Edwin Jaquett Sellers, published 1916 in Philadelphia.

This is a book I found on Google. You can get it as a pdf or you can get it as an eBook to put on book readers such as Kindles. It traces the family back to its English roots in the 11th century. I haven't checked out its accuracy but it might be worth checking.