I am a descendant of this line (James Seba).
William (James' son) had two boys (not sure of girls), William JR and Leroy George Richard Herbet (named after Emma Austin's brothers).
William faught in the Spanish American War. I do not think he had any boys.
Leroy had two boys (Richard and Douglas). Richard had me (Richard Jr.) and addopted my half sister and brother (Donnald). I have a Son Christopher and daughter (Jennifer).
I would be interested in any additional information you have.