Hi Sandra.... I must be typing something very wrong on Ancestry because I just cannot find a Henry & Alice on the 1881 IOM Census (you have obviously found it, so I must be doing something wrong). I couldn't find it the other day .. have Census either side of 1881. Castle Street would be right as they were at 19 Castle Street on 1871 Census. & on 1891 Census Henry is a retired butcher.

It was interesting to note you mentioned a William H on this 1881 Census (who is the one I'm trying to track a birth record of) ... but 1870 seems too far out. William's Death Cert in 1931 stated he was 48.