Yes, I vaguely remember that I might have mentioned that bit about mecca to someone, maybe Turner although I am not sure. So if you hear them joking about that, just know that it has been a running joke for a very long time.
Interesting how Mahan was a minister with the Cumberland Presbyterian denomination who defrocked him over that book.
Coincidentally, my great-grandfather was a minister with the Cumberland Presbyterian, but in Texas, not Missouri, so I cannot say what they would have known about that or not.