Hi,
I've got Hugh's birth certificate, he was born 15/01/1845 at 4 o'clock PM at Horsleywoodhouse (the time indicates twins, I don't have Charles's cert., so I don't know which was older). Mother Mary Blakey registered the births, 'signed' with an X. Hugh married Sarah Mellor on 7th December 1869 in Horsley. His father is listed on the marriage certificate as Charles Hugh (so I guess that's where the twins' names came from!), who was a labourer. Charles was one of the witnesses who signed the register (I'm assuming that's his brother Charles rather than the father...?)
Hugh and Sarah had a son, Hugh 18th May 1873, who married Octavia Jane Woolley (b 13/07/1876) on 1st August 1898. They had 2 daughters Anne (known as Nance) and my grandmother, Winifred Mary (16/07/1903). Octavia died in 1905, as far as I can tell, this Hugh seems to have remarried at least twice (I remember my grandmother telling me she liked one of her stepmothers but not the other one), but I don't have any details of that.
I have a note that Charles married Elizabeth and had 5 children, but that's as far as I know for that bit of the family, so if you could fill in any of the details that would be great!
I haven't found any connection with the Ottwells, although they do appear in the Smalley one place study pages. Can't find our Blakeys on that site though...