Hope it's not too late to weigh in from my branch.I descend from Oliver's sister, Philomene, who married Jean Doucet, and subsequently Arthur Carroll.I found a full list of children from Thomas & Emelie up to 1881 (census).In PEI - Lazare 1859, Fabien 1861, in St. Alexis, Matapedia, QC Pierre 1863, Modeste (F) 1871, Philomene 1873, Delphine 1875, Olivier 1877, Marie Anne 1880.A Louise was also listed as living with the family, but is 17yrs older than Thomas - at the moment I'm guessing she's his widowed mother.In addition, a Joseph was mentioned in Philomene's obituary - he was obviously born after 1881.If there are more (!), I haven't gotten to them yet. I have just finally reach this level, so I don't know when they moved to QC.Also, judging by the age gap, Thomas was probably married before. Philomene's descendants are now spread across Canada, concentrated still in Matapedia.
Thanks to all those who have put their info on this forum - I picked up a lot of details about siblings, etc.