There is some confusion here.
The Wenzel Lang I know was from Prostibor, Bohemia and had one(1)son, and two(2)daughters; Joseph (b-1835), Elizabeth (b-1838), & Susan (b-1842).
Their name was Lang in Bohemia and Joseph changed his name to Long while in Wisconsin. I have their birth records from Prostibor and have visited the villiage. Wenzel, and his wife, Maria, are buried in Clintonville, WI.