Getting into minutiae, one thing has always disturbed me about this film.
I've tried to attach a guesstimate of a historical year, and keep coming up very pre-WWI, possibly more 1910.
And then every time I see it, there's that blasted Mercury dime that's set down, which would logically, especially based upon the wear on said dime, place it in the 1920s.
It's hard to see how it could have been later than 1910, given that Elsa's mother, Hester Knudsen, died in 1885. Mariette Hartley was 21 years old during filming and she couldn't pass for much older. The headstone shows that Hester died at the age of 40 - perhaps she died in childbirth. Elsa doesn't say anything about remembering her or missing her.
I haven't listened to the commentary track yet, but I'll see if the film historians mention the dime and what year it is supposed to be.