The People Under The Stairs

I'm not sure why the basement door has so many locks.

More is always better, I guess.

Back in the day, the kitchen was in the basement. One would think that if you hired kitchen help you wouldn't have to lock them in the basement...

Perhaps it's The People Under The Stairs?

We're missing a few thumbturns on some other doors in the house (see the bottom lock and the middle lock in the photo).  The other "privacy" doors ( bathrooms, etc) have the bolt mechanism, but are missing the thumbturn to operate it.  I might need to re-purpose these if I can't find some on my next treasure hunt...