Sulc family

Am looking for information on my ggrandfather and his family. Frantisek Sulc,march 10,1852 Klorocov,moravia wife-Frantiska Horak bd-Feb .02, 1878 and their children, Oldrich Sulc, Otkar Sulc and Bozenia Sulc and my grandfather Emil Sulc(Schultz) who came to Wisconsin. Bozenia never married. Oldrich was married to Mary and had to daughters, can’t find much on Otkar. Thank you