In the 1851 census (taken in 1852), there are three Hicks families in Hamilton Township - George and Joshua (both born Canada 1814-1823, possibly related) and James (born 1829 in Ireland).
The Cobourg personal census for 1851/2 has not survived, but Joseph Hicks appeared in the agricultural census, and several other Hicks do appear in the Cobourg marriage records that have survived. So there were definitely Hicks family members in Cobourg. I have no information on whether they were related to George and Joshua.
My interest is in tracing the ancestry of George Hicks.
It seems very likely that Joshua Hicks' parents were from Luxulyan, Cornwall since I have found Luxulyan baptims and marriage records of several of the HOARE family members on the same census page as Joshua Hicks.
I would like to hear from anyone searching the Hicks families of Cobourg or Hamilton Township (excluding the recent-immigrant Irish-born James Hicks family).