Here is a very old thread re the name with a couple of more recent posts - Wexflyer features

https://www.rootschat.com/forum/index.php?topic=177909.0
Thanks for finding that - had completely forgotten!
Note that the three Christian names mentioned there for Hess family members from Old Ross recur in the Wexford family - namely John, Jacob and William.
Given the rarity of the surname, seems likely that John Hess senior was originally from Old Ross. The time scales also fit.
Some checks on Old Ross:
- No one of that surname there in 1826 tythe survey
- Guidebooks say CofI parish records for Old Ross lost, but also to see New Ross, where records are extant from 1760s.