Several years ago, I adopted this profile for William Martin, thinking he may be a lineal ancestor. I no longer think he could be, but I hadn't removed him from my watchlist (I have now) & he showed up in a duplicates check as maybe the same as John William Martin (Martin-9897).
I don't know anything more about these guys than what's in their profiles, and what's there seems too iffy to actually merge them. I thought I'd post to G2G in case either has a descendant looking for them who might be able to add some info.
P.S. "DeCoursey" listed in names because 124-DeCoursey.ged upload created Martin-1153 - other names from following links for the spouses: Linton is Sarah Messick's mother's name & Ferrel is another husband of Sarah's