Bob Love's N3451D Cavalier or N167F 44-73877 ... just guessing.
Looks like a photo taken at the San Jose airport ... could it be Jack Flaherty, old racer #9? Just a guess.
Hints: This P-51 was used for a pilot check out in the SFO area and this P-51 is still flying today but not painted as above. There were many guesses. The final hint was that it is painted as a blue noser.
The blue noser hint gave it away, it is Straw Boss.
Yes, it is Straw Boss2, N5460V, 44-72192 owned by California Warbirds. Pictured at the top is how this P-51 looked when a young and wild guy named Dan Martin first took his check ride. The plane is still flying and parked in the hangar next to Martin so he gets to see it a lot.