It IS remarkable to have this sort of "oral history"! I am so glad I copied my grandmother's words down. I should add that her stories have been borne out closely (if not perfectly) in historical records, so we can give a bit more weight to their veracity.
Diademia would have been my grandmother's great-grandmother. Although she died about 40 years before my grandmother was born (in 1901), Diademia's grand-daughter, Carolyn (Robarts) Knowlton lived 1840 - 1936, overlapping for some years with Diademia (I think) and for many years with my grandmother. I do recall my grandmother talking about Carolyn.