Nat Taylor has a great posting on Rev. War pensions. Like Nat, I have used the Heritage Quest database, but infrequently. I used those White papers back in the day via microfilm and gleaned as much as I could then. I have two ancestors who have pension records: Thomas Pinkham 1752-1820 and Benjamin York (IV) 1761-1845. Thomas's pension request was denied and Benjamin's accepted. Thomas's widow made the request and perhaps did not get enough affidavits from contemporaries to prove his service. The one affidavit makes it clear that Thomas was at Ft. Ticonderoga and helped transport those cannons to Dorchester Heights in 1776. Benjamin, on the other hand, filed his pension papers himself. Perhaps that was the difference.