Ready for submission:
VMF-214, known to have been flown by Boyington.
VMF-321 aboard USS
Kwajalein, assigned to Lt. J.J. O'Connell. The
Kwajalein was delivering aircraft to Guam, where VMF-321 was assigned after assisting air strikes in the surrounding areas from the carrier, so this may have been early in the Hell's Angels' deployment and before their F4Us reached the weather-beaten condition of most land-based Corsairs.
VMF-222, attributed to Lt. Olander.
More photos of these can be found in my Bent-wing Birds thread.
Next Up:
Another Black Sheep, BuNo.17740. Also known to have been flown in combat by Boyington, and used in the famous "Baseball Cap" photo, with members of VMF-214 standing on the wings wearing St. Louis Cardinals baseball caps. In this photo the old-style roundel is clearly visible under the left wing. Very likely at some point this aircraft cannibalized the wing off an older out of commission aircraft, the most likely explanation for the appearance of the roundel in this position.
As such the outer left wing will be faded and weathered slightly differently from the rest of the aircraft. Presumably the old-style roundel also appears on the upper left wing surface although I've yet to be able to confirm this (I haven't had any luck finding other photos of this bird).