Here I go again! I haven't managed to find my DUVAL'S yet, but here are 2 listings from the above Census. I hope it helps somebody.
Duval, Albert - age 34 - works in boot factory - Canada wife- Josephine - age 30 - keeping home - Canada daughter - Rosa - age 12 - at school - MA son - Louis N. - age 3 - MA son - Irving - age 11/12 - MA
Duval, Peter - age 38 - field laborer - Canada wife - Delia - age 34 - keeping home - Canada daughter - Matilde - age 11 (I think) - Canada daughter - Delia - age 8 - at home - MA son - Peter - age 6 -at school - MA son - Napolean - age 5 - at school - MA son - Lewis - age 3 - at home - MA son - Philip - age 1 - at home - MA