My mother gave me her stash from the 40's about ten years ago. And prior to that when my grandmother died (1972) I got hers. She had grain sacks and feed sacks and a piece of silk from my aunts wedding dress from 1924! (Her wedding picture hangs on my dining room wall.) Also in her stuff was a UFO that she started in 1921. I think it's called Grandmother's Garden. It's tiny hexagons sewed together in flower shapes... and the fabric is in great condition!
And then, of course, there is my own stash dating back to my sewing as a teenager in the 50's and making clothes for my children in the mid 60's.
This may sound silly, but I have a Navy wool blanket that my father had while aboard ship in WWll. He was on the USS Dunlap that had just left Pearl Harbor
early in the morning on Dec. 7, 1941. I have made quilts for every one of his great grand children and put a snippet of that blanket inside each one of them.
My kids say I'm "corny".... but they do seem to treasure those quilts.