Surname Cehlarik

I am trying to locate any information I can about the surname Cehlarik. I have done research on my great grandfathers immigration from Czechoslovia to US and am hitting a road block. His name is John Frank Cehlarik and the US Census has him coming to the states about 1907-1909. His draft cards show Austria-Hungary as country of origin and I know that is not accurate and may be due to his location in Slovakia. I am unable to locate very much information at all. Can anyone assist?