Hi Fred,
While researching cemeteries in Etobicoke, I came across a notice about the old Methodist cemetery next to Central United Church (sucessor to first Methodist church in Weston) When Riverside cemetery was open in 1892, bodies from old Methodist cemetery were moved there, but for at least 40 bodies they did not have names, only about 20 had names.
A few years ago,when they build an addition, they found a few more bodies without names. It looks like original burial register was already missing. My guess is that the Lever family would have been buried in old Methodist cemetery. They would now be moved to Riverside cemetery, but without a name. This might explain why I cannot find Nancy Lever's burial. Most likely that is where she would have been with James Lever Sr.