Pastor Siegfried Kastler (a Swabian Kastler) from Heuchlingen, Germany made an interesting discovery while researching his ancestry. He found an inscription in an old “Lagerbuch” (contains information on farms, taxes, etc.) from circa 1540 of the abby of Söflingen. This was pertaining to a village called Burlafingen near the town of Ulm. The inscription reads: “Ulrich Mayer, genannt Castler” – “Ulrich Mayer, called Castler”. Siegfried states: “This means: The former name was Mayer and Castler was a profession, which changed later to a surname”. “The surname Kastler is similar to Kastner. It means the person who has to do with the money of a chief (Kasten means box)”. It appears to be an accounting of property given by the church to Ulrich via tenure.