Hi Nora;
I also have been told that we are cousins of Sir John A. Macdonald. My great grandmother Catherine Macdonald married James Sangster and resided in the Brockville region. One of their children Jannett Sangster married a David Coughlin. One of their children, Daniel James Herbert married Vera Murray, daughter of Denis John and Jesse Fraser. My paternal side are the Macdonalds, Sangsters and Coughlins. My maternal side are the Murrays, Frasers and Shaws. Most of the family spread from Kingston, and Brockville region to Ottawa and Arnprior. We are tracing the family tree now and have met many wonderful new found family. Good luck with your search.
Dianne