1909 – H.L.Dennison
1911 – Harry L. Dennison, b. 1887
1912 – 1919 – Harry L. Dennison, K.C.
When I asked my mother about this, she didn’t know. Doesn’t seem like it could be anyone else with the birth year matching.
They left Nova Scotia in July 1923. He would have been 22 in 1909, quite young but an adult. They were married in 1914.
Note: Apparently they left Digby by 1919 or early 1920 because they lived in Annapolis Royal when Marion was born in May 1920.