there is something not tying up with Shelah (crumbs, I havent even started looking at Luke yet....)
In 1861 he is 34, wife Ann 23, little girl Eliza age 3
this fits in with marriage:
1856 Kensington
Shelah Pitts also on page Ann Robinson
In 1881 he is 54, fine, but wife Annie is only 30, and children are aged 10,8, and 1. So this must be a different wife! Well, I suppose the age could be wrong and she is really 43 and baby Harriett was one of those little late surprises.