The oldest ones I own are all from the same person, "Gaff" Emily Bernice Heidler, my great-grandmother, so not particularly old but I'm still really glad to have them and after all I just started serious research a little over a year ago. The first are her wedding and engagement rings, which I have had ever since she died when I was a baby. Then I have her matching brush and mirror, which I have also had for quite a while. I also have an embroidered silk shawl of hers that someone got her from China - I'm still narrowing down who. I got that a couple years ago.
My father also has her confirmation certificate.
Somehow I never got anyone else's things, just hers. :)