I was very interested in your query. Of the eight names you listed, four (Gilhuly, Willard, Finn, Dillon) are familiar to me. People with these surnames married into the Wellwood Family of Raleigh, Kent County, Ontario which I have been successfully researching for several years.
Do you have a connection with the Wellwoods?
Here is an outline of what I know of these families. Margaret Ann Willard (1852-1914) married Samuel Lyttle Wellwood. Their son James married Ada Mary Gilhuly (1875-1945); their son George Edwin married Aurelia M. Finn (1889-1953). James and Ada Marys daughter, Ada Mary, married Herbert B. Dillon (1909-?).
I have some additional information on the Willard, Gilhuly, Finn and Dillon families (parents, siblings, burial location) and extensive information on the Wellwood Family. If these are the same families you are researching I would be happy to share the information I have.