Hi there my name is Teressa Louiseize(nee Dumbleton), I am also trying to find out some of my descendents to.I can tell you that there is some Dumbletons living in Kingston,Ontario(canada).You could try looking up some of them in Kingston, they might be able to help you further. My grandfather was named John William Dumbleton and my father is Gary William Dumbleton. My father's dad is buried in woodlawn cemetary in Burlington, Ontario(Canada), My father's mother was: Thelma F. Decker or Dekker. If these can help you in any way let me know. thanks!