At the beginning of the movie, William Spence (Fredric March) announces he has been "called" to the church and will become a pastor in the Methodist Church. His soon-to-be mother-in-law, Mrs. Norris (Nana Bryant)), replies that she would have preferred that he'd joined the Episcopal Church. At that time, in Canada, the dominant church was the Church of England, not the Episcopal Church. That is predominantly a US institution born out of the American Revolution.
At the very end the assembled congregation sings the first verse of "The Church's One Foundation." After the first verse (of five) they sing double "Amens". The lyrics do not call for a single Amen, let alone two.
The film begins in 1904 when William Spence and Hope are on the verge of marrying. Years later, when Reverend Spence visits Mrs. Sandow's servant Samson, Samson comments that the reverend joked with people "during the bad times of the Depression," obviously referring to the Great Depression, triggered by the Stock Market crash of 1929. Later the same day, after William's visit with Samson, Hope comments to her husband that he has seen her for the last twenty years. If a twenty-year time period has indeed been the length of their marriage at this point, the year would be 1924, five years before the crash and subsequent Depression have even occurred.