Is Abel one of Adolph(e)'s siblings?

I am one of Henry DeCoux's grandaughters. Most of us live on the west coast. In an effort to find Henry's family I traveled to Louraeville, LA in 2007 and found the family crypt behind the church in that town. There is a faded list in the parrish office that shows who is buried there including Adolph(e) and perhaps Florestine. We have various stories surrounding the mysterious Florestine and we are wondering if anyone can tell us if her full name was Octivie Florestine Vaughn. If so we can move on.

Adolph's father Leo is in the crypt. His father and mother were Leonard De Coux and Zoe Cerement Bouth. Leonard's father and mother were Hilaire DeCoux and Emilee DeCur. In my research I found that DeCur was an alternate spelling of DeCoux and have alwasy assumed Hilaire married a cousin.

Hope some of this is helpful.