Citation: The Naturalized Jews of the Grand Duchy of Posen in 1834 and 1835 Revised Edition Compiled by Edward David Luft published by Avotaynu in 2004. Cost about $50 USD in 2021.
Extract: Auerbach's are found in these towns: Posen, Meseritz, Santomysl, Fordon, Krotoschin, Ostrowo, Adelnau.
Two Rabbis named Auerbach are listed: Mannheim in Ostrowo and Jachal Joel in Lissa.