By posting this photo and her note from an email exchange (with her permission of course) this lovely couple might be her Great Great Grandparents. If Connie can find right the person out there in the genealogy internet world researching the DALTON family in or near the Peterborough Ontario Canada area.
I posted this photo at my Restored Memories store and she found it. Looking closely on the back she saw the names Dumer and Dalton just barely visible. Below is her email.