I am surprised no one responded to this one yet. According to the Ketcheson Book (2000), Rev. Joseph Ketcheson BROWN 1907-was the son of Fred Lawrence BROWN 1862-1939 and Elsie Delica REID1864-1956.Elsie was the dau'r of Owen Ketcheson REID 1835-1917 & Jane Ann BROWN 1839-1927. Owen K. REID was the son of David T. REID 1808-1902 and Annis KETCHESON 1811-1901, and obviously Annis was a desc. of the Loyalist William KETCHESON Sr. U.E.You were right in suspecting a KETCHESON link, but the actual surname was a little further back. As far as I know the only early KETCHESON to settle in "Ontario" was William KETCHESON Sr. UE and his family.