According to my second cousin's wife's social security application (ss-5), her mother's maden name was Franziska Drumel. She was married to Leopold Kroisenbacher. I have been able to trace many of the Wucherer and Kroisenbacher family members back to either Arnoldstein or Pochau, Kaernten, Austria which is accurate according to my father's stories; however, I have not had too much success tracing the maternal side of the families. Perhaps Franzisa is a member of your Drumel line.