My father is Jonny Craig Jirasek. My grandfather is John Charles Jirasek. My great grandfather is Jan Jirasek married to Anna -? Jan and Anna immigrated to Detroit Michigan, USA from Bohemia around 1910. My grandfather, John Charles, is 82 years old and his sister May is 80 years old. Since this name is not popular in the US to my knowledge I am wondering if anyone can provide information.