There is a Will tying the families of Demorestville, Ontario to that cemetery. Notice that Demaray/Demary/Dememey/Demorest/Demarest/Des Marest and about 40 other variations are all the same family. Makes searching somewhat troublesome. I also believe the spellings at Lafayette Ackerson is the same family as Ackerman. The Demorest Museum also has more Ackerman names listed as well can send more links or you can email me directly I have tons of sources on this family.