I dated a guy named Mark Tyska. We got into the conversation about the last name, and he told me that he believed that the name was maybe Russian, perhaps, Chech? He said that the story was that the name was "americanized" or shortened to Tyska from a longer surname. He was from Ohio, and he had several family members there with the same last name. Unfortunately he was killed in an automobile accident in 1997, but i have a few of his family member names if anyone is interested.
melissagateway@yahoo.com