History of Individual CH-46s
If you have ever wondered what happened to your old aircraft, then here is a link https://www.helis.com/ that should tell you. It has information about every CH-46A ever made, as well as a drop-down list of all of the other CH-46 models and just about every other helicopter in the world.
For example, this link https://www.helis.com/database/cn/1229/ tells the story of the CH-46 hanging in the Naval Aviation Museum in Pensacola. She started life in 1965 when she was delivered to Boeing FR in Morton, PA, on 15 October. She was assigned bureau number 151952 and delivered to HMM-164 in December.