The USAF purchased a number of KFirs from the IDFAF in the 1980s, so there could be some at AMARC.
The rightmost one I thought a P-3 indeed looks different. DC6 or DC7 derivative most likely.
It's indeed no RB-45, I got the designation wrong. It's an RB-57 (probably an E or F version), Martin's version of the Canberra designed as a high altitude spyplane for the USAF.
Kfirs were bought by the Navy/Marine Corp for agressor training - AF used the F-5 and later F-16. I think the delta wing in the picture is either an F-102 or F-106.
The four engine bird next to the P-3 is most likely a P-2 Neptune, the predecessor in that role.
The RB-57 is the F variant. The E had essentially the same wing as the basic B-57 , where the F had much longer wings, bigger main engines, and, hidden in the overhead, additional small engines outboard of the main ones. Talk about excess power in relation to lift, pilots had to fight to hold it down till there was enough airspeed for the control surfaces to act.
The other swept wing birds are pretty much gonna remain nameless, unless someone's taking a trip to Tucson any time soon.
The KFirs were leased, I looked it up, and returned to Israel in 1989 or so.
The Neptune has 2 prop engines and in some versions 2 small turbojets under the wing, not in the wingtips, so left one could be that. Strange colours though, USN Neptunes never wore dark grey to the best of my knowledge.
The RB-57E had a large wing (though not as huge as the F) but smaller diameter engines than the F.
The engine intakes on this bird seem too small for the F (most of which would probably not be at AMARC anyway as they were sold to NACA/NASA after leaving the Air Force).
#42 is not a Starship indeed. This is a single engine aircraft. The Starship is far prettier :)
As to what it is, a few hints:
It never entered production. Gained FAA certification in the late 1980s. Two were built, of which the first had a slightly different configuration (and thus a different model name).
It is of US design and manufacture.
First is an (or rather "the" as there is/was only one) Omac Laser 300. Prototype turboprop business aircraft built around the same time as the Piaggio Avanti and Beech Starship, and utterly failing to sell anything.
Second is an IAI Arava 201. Israeli light transport aircraft, sold to several other countries in South America and Africa.
Third is a Koolhoven FK.51 trainer/observation aircraft, last used in May 1940 as a light bomber during the German invasion of the Netherlands.
Yah, the A320 and A319 are different but under that angle it can be hard to tell unless there is something to compare scale.
#49 is a heavily defaced (shame on its owners) B-25.
But indeed light general aviation aircraft aren't my strong point.
I live neither near an airbase (but near a major airport and 2 GA fields) nor do I like Google at all (as people here know well).
What I do have is a lifelong interest in aviation leading to a massive library as well as a large collection of my own photographs and a lot of links to aviation related websites.
Combine that with a near photographic memory for aircraft (and some other things).