I had a look at the Family Bible page, and as you said, it is difficult to read. It also seemed to be all written on the same day, and not in chronological order. Am i seeing that correctly? Any time that happens, it is definitely possible that someone could be missed.
Are you sure it was from the Family Bible, if it was part of the pension file?
It seems to be from quite a long time after the Revolutionary War.
Are you able to account for all the people mentioned in that list? I only ask because it could give you insight into the intent of the list. Maybe they only listed ones who were currently alive, or some other criteria.
Good luck with an interesting puzzle!
Cheers
Shirlea