Caroline, I printed up your message and sent it to a researcher who works off-line. I will quote to you what she wrote back: "About the Marie Demill who married a Fralick, the latter name seemed to ring a bell. It may be because Sophia Redner, daughter of Peter Redner...married 1. Wm. Burr & 2. Wm. Fraleigh. It is certainly a Quinte name." (By that she means there were many of them living in Prince Edward County, Ontario.)
"I decided to check for Timothy and Maria Fralick nee Demill in the Skugog census records. They do not appear in the 1851 census, but are there (I guess) in 1861. My William (Demill-Redner) left before 1861, but their times there could have overlapped."
"I do not know what to make of the 1861 entry for the Fralicks. The enumerator substituted initials for first names as follows: S. Fralick, farmer, 43 yrs., born U.S.A., P. Fralick 33 yrs. born Canada East; L. 14 yrs.; T. 11 yrs.; P. 9 yrs.; S. 7 yrs.; H. 4 yrs.; I. 73 yrs., widower, born U.S.A."
Caroline, my Demill family is also from this area. I suspect they are related to your Maria, but couldn't say how yet. Laurie