Hi there Catherine,
A simple statement to start: all Fumertons and Fummertons in North America are decendents from one couple (John Fumerton & Mary Frew) who emmigrated to Canada from Scotland in 1821 and were settled in Lanark County, Ontario.
Three other Fumerton couples subsequently emmigrated to Canada/USA. James a younger brother of John who also settled in Lanark county but all his sons were killed in farming/logging accidents as very young men with no issue. William who emmigrated from the Scotish borders and for a short while settled in Ontario but then migrated to the NWT and 'vanished'. The last Fumerton to emmigrate was Mathew who moved to Massachusett with a son and a daughter but that trail turned cold shortly after his arrival in the New World.
As for who gave me the info on the Thunder Bay Fummertons, I will have to cantact the gentleman as I promised not to spread info on the Internet when I did my research. This to preserve privacy.