Hello Tom, I see the clan of Sladky is large. My wife is a descendant of brother of Jan Sladky alias Kozina, geat man of Chodsko history. Families with surnames Anderle, Halada, Sladky, Cerny, Novy, Zima lived and till this time live in Domazlice area in southwest Bohemia. Cernikov is a small village in same area. Family Spevacek lived in Liblin village by Plzen. I have done a fomily tree for a Spevacek descendants in USA. Tonyk.