I have a few of these in my suggestions. I was thinking that it may be that someone was was reinterred. Since WikiTree does not provide a field for Burial date, maybe someone should stop checking for a match between the cemetery timeframe and DOD?
From Wikipedia:
Forrest died on July 6, 1805 in the parlor of the Rosedale's farmhouse, and was buried in the Presbyterian Burying Ground in Washington, D.C.[52][53][1][45][12] His remains were later disinterred, and he was reburied at Oak Hill Cemetery.[52][1]
