Diane, recently my wife Rosemarie received her grandfather Johannes (John) Harahuc's Baptism/Confirmation paper. In this paper she has discovered that his father's name was Stefan who married Eva Tkacz who was the daughter of Nicolai Tkacz and Catherine Jerek or Terek not sure. The village of John's birth and parish is Wislok Nyzinyj (Upper Wislok) located in the district/county of Sanok, and belonged to the Archdiocese of Peremyshl. This is the all of the information that I have for the surname Tkacz. I am also looking for any information regarding Tkacz from Wislok Welikiy and/or Wislok Nyzinyj.