mistake
I don't know if this has been posted on "By the Light of the Silvery Moon," board.
Anyway, there is a mistake in the sequel at the end of 'On Moonlight Bay,' Alice tells George the story about how they got engaged in the forest.
While in 'By the Light of the Silvery Moon,' Alice tells Marjorie that they became engaged at the ice ring and he was taking off her shoes and proposed.