FamilySearch has the attached Boston, Mass., marriage record for Hector John Patterson and Sadie McAuley which shows his parents to be John Patterson and Maggie McKinnon. Her parents are Allen McAuley and Sarah McDougall. In the 1881 census for N.S., the Pattersons are living at Fourchu, Richmond, N.S. In 1891, they're at Framboise, Richmond, N.S.
FamilySearch also has a record (no image) of the marriage of John Patterson to Margaret McKinnon on February 6th, 1866, at Fourchu, Cape Breton. His father is Angus Patterson and his mother is Peggy McLeod. Her father is Donald McKinnon and her mother is Christine "Maespir".
This may be the family you're researching.