Amy, sorry i didn`t know any brothers or sisters. Franz Knab and his wife returend to Europe and came back to USA 1921 with Clara and Aranka Knab her Grandchilds?. The Knab-Family was great. I´m very interested about Knab-Family because my Ur,Ur Grandma was Katharina Knab, her Husband Antal Kubovits. The original name from William Knab was Wilhelm. I only know a Stefan Knab, born 1852 in Mokrin and a Josef Knab born 1875 searching his Brother Wilhelm Knab in USA. If i found anythink I tell you.