I have just started researching my Bohemian ancestors, whose last name was Cermak or Chermak. I haven't found much, and have been unable to determine if the name is relatively common or not. My great-grandfather was Stanislav Cermak, b. May 7, 1887 somewhere in Bohemia, d. Aug 1, 1951 in Idaho. His wife Katarina, maiden name also Cermak, was b. Nov. 4, 1887, d. in Idaho on May 8, 1932. Her parents were Marie (b. May 7, 1857, d. Nov 14, 1935) and Alois (b. Nov. 11, 1854, d. March 26, 1910) Cermak. I believe there are relatives in the Chicago area but have no information on them. If anyone has any information on the Cermak name, please respond.