I was startled to find the probate records and will for Isaac Snow of Rochester, MA indicating he died in 1789. I had him in my database as dying in August 19, 1812 at about 93 years old. I clicked my source footnote only to discover the DAR ancestor database was the source. I checked to see if their listing had any caveats posted, but there weren't any. The birthdate, wife's name and two child names were the same. A quick check at ancestry.com found one public trees with the 1812 date, but most of the records pointed to the 1789 death. I popped over to find-a-grave and found a photo of a tombstone in Rochester, MA for an Isaac Snow who died August 19, 1812. The catch? The tombstone was inscribed with his age of 23.
In my opinion, that's a pretty bad mistake. I admit I have the advantage of the internet to help me find strong sources, but I thought the whole point of the application process for lineage societies was to screen for things like this. I mean really, I'm just an amateur and not trying to apply for any lineage societies (yet). Now I wonder what the point would be.
Alas, is there no one I can trust?