When Richard goes to explain to Marjorie what a murder trial would be like, they are shown sitting down at the desk twice.
Although Forrester Harvey is credited onscreen as Spencer Wilson, it is Charles Crockett's character who is referred to as "Mr. Wilson" at one point. Harvey's character name is never spoken in the movie.
A 1918 Victrola does not get "PLUGGED IN", rather it is wound up like a clock.