Hi, did you ever get the information you needed on the Cabassier's? My gg-grandmother was Francoise Cabassier who married Nicholas Ourey in 1871 in Vincennes. Her parents were Charles Cabassier and Rosalie LaCoste dit Languedoc. I am also related to the Tessier's, but mine was Agnes Tessier who married Guillaume Richard in Montreal. Their son was Jean-Baptiste Richard, the blacksmith and interpreter who married Marie-Anne You and lived at Ouiatanon. I have lots more info if you need it.