I’m not sure that Edith wouldn’t have known about Clark Gable in 1930. He was in Broadway productions
Interesting theory! I'd wonder if Broadway shows were really in the means of someone running the 21st Street Mission, though.
t’s no real help, but have you considered that the festival on the 14th shown on the calendar is a religious one? My guess would be The Exaltation of the Holy Cross, in September. The calendar would then probably be for 1927. Why it’s still up on the wall is anyone’s guess.
The 14th being a religious holiday seems
very likely to me, since it's in red, the same as all Sundays on that calendar. That usually points to a religious holiday.
As far as the weather goes, I’ve not been able to find anything really detailed.
As has been noted elsewhere in this thread, all we really know is that it's cold enough for most people to be wearing winter coats, but not quite cold enough for people to be breaking into Edith Keeler's basement.
If you think all this is going a bit far, it’s nothing compared to the lengths Sherlock Holmes fans go to pin down the details in the stories.
Ain't that the truth! I'm not really to start consulting weather reports and train schedules from the Victorian era quite yet, though...
BTW, if you're a Holmes fan, you may also like my Sherlock Holmes Chronology, seen here (It's still missing a few cases, though):
https://www.sutori.com/story/sherlock-holmes-timeline
Where does Keeler come from?
It's never explicitly stated, but considering that Joan Collins was using her normal accent, I'd guess England. So I'd say she was made of hearty stuff when it came to winters.
How long has she been assigned to New York?

Assigned? As far as I know, the 21st Street Mission was a voluntary operation.
The prime universe Clark Gable may have had a different career than ours.
I'm still of the school that says the Eugenics Wars/WWIII were in the 1990s, but rewriting Clark Gable's career to preserve a couple lines of dialogue is a bit farther than I'm willing to go.
Omg... how do we bear these inconsistencies?
Move to decanonize this garbage episode!
Really, it's the only rational solution. Give me the consistency of "The Way To Eden" any day!
