The Hunter is ex Danish F.51 - if you've seen The Right Stuff, it fleetingly played the part of the Douglas 558-2 Skyrocket. Lost at Chino in 2000 after an engine failure on approach, pilot ejected and was seriously injured but it seems survived.
B-25 was indeed owned by Howard Hughes - now moved to a museum at San Simeon. Think there was an A-20 there at one point, which had also been owned by Howard Hughes, now with Kermit Weeks.