Just read your posts - I am related to both individuals you mention and am researching both families.
Louis Edward Comeau is related to me on my dad's side of the family (Comeau) and Lena LeBlanc on my mother's side (LeBlanc). Her father, Symphorien LeBlanc is my gr-grandfather. I am originally from Meteghan Centre where both families resided.
Hope to hear from you
Marcelle Comeau