Greg, I am still working on this, just wanted to get it out that there are American family connections that can be made to Lafayette's descendants, so that others may help link them.
I worked on the Warren children, took their Miller line back to a man from 1768, and added the line to the Baron in England. I will see what other fingers I can add to create links to other lines already on WikiTree, and to improve the profiles I created.
Normally, I don't work with linking European profiles for I don't have the experience with their records, but when I saw the American connections, I got excited. Thank you so much for adding Constance to her husband, for that was how I came across this on Lafayette's descendants list.