lived in Canandaigua, NY in the late 1860s, taught piano. (Or from - source (Alfred Theodore Andreas' "History of Chicago") refers to a student's taking lessons at that time from "Gustav Blessner "of Canandaigua".) Actually, according to Ontario County records for 1867-8 (PDF) (page 133), taught music at the Ontario Female Seminary at that time. (Yes, Canandaigua is part of Ontario County.)
