Unless I have more names, don't think your Offen's are mine. My ggrandfather was Albert Offen and Grandfather was Albert Martin. Of course these are the names used in America, the german names for the elder is Johannes Goergius Albertus Offen and he was from Wandsbeck, Hamburg, Germany. His father was Hans Diederich and Mother was Caroline Sophia Cornelia David. My g grandfather had at least one brother, name Andreas Ernst Deitrich. Do you have any of these names?