Bio of Richard "Rip" Collins
here His home page.
HERE He would fit in here, he has an
opinion.Some information on the group with a few
pictures.40th FS/35th FG
Mustang.39th Fighter Squadron of the 35th FG Mustang profile
here. You can also check out the 35th FG P-51 on page 62 of "Mustang and Thunderbolt Aces of the Pacific and CBI" by John Stanaway. I am sure Dan can scan it and post here. I don't have a scanner. Also page 57 has two P-47Ds in 40th FS colors.
It looks like they kept the same basic markings throughout with the 40th FS having red noses.
Good Luck.