I have the treadle machine that belonged to my great, great Aunt Mae. I never knew her - she died when my mother was a little girl and even though I learned to sew at the age of 8, I was never allowed to "play" with either of the treadles at my grandmother's house. Looking back, I think they were wrong in not teaching me to use them. It would have been a bond between the years. My mother did give me her machine, the 1950 Singer 15-91 that I did learn to sew on, but what a treat it would have been to that memory.
You are so fortunate to have the machine and the memories. I love using my treadle, I don't open it that often but enjoy it when I do.