For Hertzer there are 18 on Yasni with different names.
Among the most common last names on Yasni Hertzer is on position 4509.
A Herald - who has also made our family coats of arms - has speculated that the name of "Harz" comes, the coming out of the resin, and there is at home. This is also suggested that many Hertzer's are found in the resin (emphasis Clausthal-Zellerfeld).
(Sent from: Franz-Henning Hertzer)