Lin... if YOU are not tech savvy, perhaps you know someone who is. If you live in a metropolitan area, there is probably a folk group... or at least a few who remember the 60s & 70s and who might like to have some of that music in return for helping organize it and do 'techie' stuff with it.

Otherwise, you are down to picking some arbitrary system.. (artist's last name, group name, 'favorites', style (acoustic solo, bluegrass, traditional) whatever YOU think of them. (some things may even be temporarily done by album color - Folk Legacy records were all black at one time, and I kept them together.

After that, it's just pencil & paper and 3X5 cards. People made do with such things for a long time.
Digital photos with album names might help... but those require a minimum of techie filing to store them on a computer.

My first suggestion... getting local help... is what I'd recommend.