I'm David's gggg-granddaughter through his son James Cartwright. I have a lot of information about JC's descendants. I've been stumped for years however on JC's mother. Somehow, somewhere someone in my family has her name as Delia b. 1810, but she passed away and David married another woman and had several children with her. I'd be glad to share any info I have on the Dupuys, and I'd love to hear from other researchers on this family.
Christy Lockstein