Just adding a transcription from the Canadian vital records for the marriage here:
Frederick Charles Stevenson of the City of Quebec, a groom (?), a bachelor, aged thirty three years xxx son of Thomas B and Anne Stevenson of London, England and Henrietta Curwen, of the City of Quebec, spinster aged thirty two years and daughter Mary Ann Curwen of Whitehaven, Cumberland County, England. xxxx...hard to read but I think the name of the person who married them...married at the Manse, Quebec on this the seventeenth day of February, one thousand nine hundred and fifteen.
Signatures for them, including those of their witnesses.
Monica