Help identifying artists in old photos

[FirefoxAxeman]

Hi All

Friend gave me a load of old rock prints and I hoped that the vast army of you out there could help me identify who is in the pictures

https://postimg.cc/gallery/ebisav0a/

Hope I haven't broken any rules, this is my first time on the forum

all the best
FirefoxAxeman

 

[Nai Noswad]

Last one looks like a young Billy Preston.
No :5 Roy Haper or Nilsson?