I have two Harriet McCormicks, one was born 1866 in Lochiel, died 1956 in Quebec. Her parents were Robert McCormick and Sarah/Sally Cameron, my great aunt. I, also, have Harriet/Hattie McCormick born 1870 at McCormick's Post Office, her parents were Robert Hector McCormick and Catherine/Kate Cameron, another one of my great aunts. She married Edward Dever.
I'll be very happy to hear from you, maybe you can fill in some of the gaps.
You can e-mail me direct if you'd like.
Joan O'Brien Keeferekeefe@aol.com