Four-generation photo: Jean Gagnon and his daughter Georgianna, granddaughter Anna Jolin, and great-granddaughter Micheline Poulin. For more information on this family, see Ancient Faces page http://www.ancientfaces.com/research/photo/403473 For family researchers who find this post, I am not researching the family; I got the photo from the above webpage.
Here are more Gagnon families. I didn't even check to see if they are related to the above. It looks like the same man but it's the wrong era. Perhaps this is a look-alike namesake son? You can research that on Ancient Faces if you're interested.
Back: Ernest, Vital, Mathilda, Gerard and Joseph.
Front: Eveline, Jean, Demerise and Justine
Ancient Faces link: http://www.ancientfaces.com/research/photo/377280
Same family in 1945:
Back: Joseph, Ernest, Gaudias, Gerard and Vital
Front: Maria, Eveline, Justine, Alphonsine and Mathilda
And one more Gagnon family. As before, I don't know how/whether they relate to the above families.
They are six brothers: Vital, Mathias, Gaudias, Joseph, Ernest and Archelas