I'm glad you said "may". Who Jedediah Canfield married is in question although I personally believe at present he married Lydia Kellum.
Cliff Canfield tended to get things slightly confused. Lydia is a daughter of Reuben and Deborah Kellum of Norwalk, Ct. Theophilus is her brother. There were some deeds and land records involving both Jedediah and Theophilus in Norwalk and in Bedford, Westchester County, NY. Jedediah left Norwalk and moved to Bedford in 1730. Much detail of his life is unknown for a variety of reasons. He apparently died in 1761 and is probably buried in the old section of the graveyard at Bedford but the spot is not now marked. Several of his grandchildren are buried there and their stones were around as late as 1913 or so but have since disappeared. If you need more info and I have it, feel free to write and ask.