I think I found them! go to that census page 4b family #62
Zeno is not listed as b or m or w, in fact there is nothing in that box, but the wife and maybe mother of the child that died is listed as "m", although I cannot read her name.
I found Zenon with a "Julie" at the baptism of Arthur in 1844 born in 1840. And Zenon and Julie REINE at the baptism of Auguste Hilaire (Elair in the census).
I dont know, maybe there were two Zenons with Julies?
Go see for yourself. I'd keep looking.