To be fair, you can't say the same of the P-51 community. The provenance -- even the actual identity -- of many Mustangs is very questionable for several reasons.
Numerous Mustangs served in foreign Air Forces during the 50s and 60s, and some of those places acquired their airplanes illicitly, against restrictions or sanctions by the international community. Because of this, many of the serial numbers were "washed" on these airframes -- N numbers were used and re-used, fake serials were applied or used in AF records, etc.
In addition, until the 1980s, very little attention was paid to the historical provenance of many warbirds. It is certainly NOT like the classic car movement, where every little bit of an airframe's history is known and documented.
So...knowing exact ownership histories of every single airframe is all but not possible. There are the "accepted" FAA histories, and then there are the real stories...and only sometimes are these histories the same!