Hospital built after 1875 and before 1884 because it didn't appear on the 1875 map (that area was called greenbank, don't know if it was a house or area) and in 1884 the CLARENCE REFORMATORY SCHOOL SHIP had a fire and the kids were temporarily housed in the hospital from January 'til July when they needed the hospital for a Cholera outbreak.
@yoller, yes effectively an isolation hospital, and all the other things you say rings bells as well, thankyou.
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