My Great Grandmother was Margaret Jane Pottruff (b. 1858 )who married by great grandfather, Frank Turnbull. My mother has the Pottruff Geneology book. These Pottruffs came to Ontario to Saltfleet/Hamilton area from Pennsylvania, US.Some stayed in the Hamilton area, some moved to Paris/Brantford ON area.This is a big family, and every year there is a Pottruff reunion (June)in Paris for the Paris clan.My mother was born on one of the original Paris (Bethel) Homesteads. We have pictures.The geneology book ranges from about late 1700's to 1978 and is quite detailed.I can check to see if others are being printed or whether its being updated.It would be nice to hear from cousins, and I can look up info for you.