1. I believe it had to be sometime in the 1960's when concerning just the USAF and not the USAAF. There were at least ten types of fighters and interceptors in service during this decade, as well as four types of bombers, at least five types of transports, I believe at least three types of helicopters, three FAC aircraft, four trainer aircraft types, four reconnaissance types, and numerous other types as well. As far as which exact year of the 60's Im not yet sure.
2. I've seen photos of the F-105 carrying a twin rail AIM-9 adapter, here is a link to a website that has proof of the F-105's ability to carry two AIM-9s each on its outer pylons. http://www.burrusspt...05ordnance.html just click the external stores info link in the top left.
3. Wrench is exactly right, the AIM-4 was carried by all these types. The USAF used the AIM-4 on its F-4's from 1967 to 1972 because the AIM-4 was the USAF equivalent of the AIM-9 and was used on all other types of USAF fighters and therefore it made since to arm the F-4 with them due to familiarity USAF pilots and groundcrew already had with the AIM-4, and it was in greater supply. The AIM-9 was developed by the USN to equip the F-4B and in USAF service the AIM-9's used by the F-4C in 1965-67 over Vietnam, were just USN designed AIM-9B's delivered with the USAF's F-4C's which were basically F-4B's with limited modifications. Once the F-4D entered service, as this type was the first USAF designed variant it was intended to carry the existing USAF infra-red missile the AIM-4. The AIM-4 was not intended to be carried externally, and therefore it did not perform well on the F-4D/E, due to it's sensitive guidance systems, and its complicated firing process made it hard to use in a dogfight. Add this to the AIM-4's hit-to-kill only capability, and you have the missile who's performance in Vietnam was in legenadary Brig. Gen. Robin Olds' words, "As Useless as Tits on a Boar Hog".