Hvostal/Stefan surnames

Seeking information on my grandparents, both from Slovakia. Michael Hvostal was born on or about June 18th, 1890. Not sure of his birthplace, other than Slovakia. He had two sisters, Anna and Mary. He also had two brothers, George and Miklas.

My grandmother, Anna Hvostal(Stefan), was born on or about June 27, 1900. Her parents were Gyorgy and Maria Stefan. Maria’s maiden name was Vasily. Her baptism took place in Ubrez, Sobrance, Slovakia(1900).