Wentworth is actually in the Argenteuil Municipality in the Laurentians north of Montreal.

http://en.wikipedia.org/wiki/Wentworth,_Quebec

There are several George Smith's found in Argenteuil on the Canada,Voters Lists, 1935-1980. What was his occupation and names of family members?

You may want to contact the Town of Wentworth, they may be able to lead you in the right direction.
http://www.wentworth.ca/Accueil/affichage.asp?langue=2&B...

Good luck with your research!
Sue