there were also several pontchartrain's written about in acadia in the seventeenth and eighteenth centuries. it was a fairly common french name. chartrain was also a french name but not as common in acadie.

i was recently reading farragher's book about the history of adadia and the ethnic cleansing committed by the americans and british. found one of my direct ancestors mentioned.pierre melancon dit laverdure. the elder.(we don't know if pierre melancon dit laverdure the younger was out direct line) and a couple of pontchartrain's as early acadien settlers.both were from huguenot background. that may explain their willingness to give it a try in the new world.