Bonjour cousin Rodney This Ouellette Branch looks good. I'm blocked too with Antoine Ouellette /Ouellet and Malvina or Delima Belanger or Marie Louise Bélanger, I think this Malvina/Delvina/Marie Louise Bélanger is the same person I speak with your aunt Doris Beaulieu,, but she don't remember so fare. On this web : http://collections.banq.qc.ca/ark:/52327/bs2038626http://collections.banq.qc.ca/ark:/52327/bs2038626 435 pages of Ouellet /Ouellette names.
And register Parish St-Donat ,Rimouski,Qc. I found Marie Louise Bélanger daughter of Georges Belanger et Marie Louis Claveau married 11 may 1874 to Antoine Ouellet son of Antoine Ouellet et Louise Levesque Hoping find the good Antoine Ouellete/Ouellet :father of Joseph Ouellette married Edith Long/Lang link to René Ouellette and Thérèse Pelletier cousin claudette nadeau (your grand 'mother Beatrice Nadeau is my aunt.