I wonder if the Lachute library has any kind of directory that might list him. Did he remain in the area, or did he leave?
Were you aware there is a mailing list for people who have a genealogical interest in British Home Children who immigrated to Canada at http://lists.rootsweb.ancestry.com/index/intl/CAN/BRITISHHOM...
? There is also a message board at http://boards.rootsweb.com/topics.orphans.brithomechild/mb.a...
If you haven't already, you could Google "British Home Children Canada" or "George Smith British Home Children Canada" (without the quotes) and see if you can find information that way.
I wish you success with your search.