Antedating of "where's the fire?" 1875

[Sam Clements]

OED has 1924.

5 August 1875 _Burlington(IA) Weekly Hawkeye_  2/4

<<In the morning, or rather in the night, at half-past three, I was aroused
from shearing sheep by the man behind me rolling over me, and standing on
the floor.  When I was able to speak I said:
  "Who's sick?"
  No reply.
  "Where's the fire?">>