just a question - which connection should have this note about the male piano-builder Emmerich (firstname) Bétsy/from hungarian germanized to Bétschi (lastname) in Vienna with the female Betsy (firstname) Emerich (lastname), daughter of John Casper Emerich (lastname) in the link: http://www.emerichbetsy.com/
first- and lastnames mixed vice-versa.
Emmerich Bétsy was male! and lived in Vienna much later then this Betsy Emerich anywhere which looks like to have more an orgin from very far away. and how said, at her the name Betsy is the firstname and at him the lastname!
??? Family Genealogy Records — FamilySearch.org
Betsy Emerich: Daughter of John Casper Emerich and Christine Degrate, Born 1785
John Casper Emerich: Son of John Adam Emerich and Maria Barbara Riegel, Born 1761 ???