I have not been able to find them after 1861 so perhaps they all went to US.
I did show you that Julie was with her brother Gideon in 1871 so will see if I can find any of the others.
There is a Moses Cota in 1880 census for Brattleboro, Windham, VT - he is single, age 35, so born about 1845 Canada which fits for Moise- he is listed as a labourer, in the Vermont asylum for the insane but no way to know for sure if this is the right Moise/Moses, nor to tell if he was an inmate there, or an employee
There are some possibilities in VT for Gideon's sisters Rosalie and Julie but without knowing who they married these are just possibilities - woman with right names and approx. ages.