Thank you Suz

The marriage cert I have is for John Ernest Houghton born circa 1905 married to Margaret Hill Jenkins, 1928, this confirms John's father was a James William Arthur Houghton a Cutlery Dealer (possibly - hard to read).
This is really the only hard evidence I have at the moment relating to the Houghton side.
Based on the info here I've looked in to things though and it does appear to 'fit' - in 1901, one of the witnesses to the marriage was Elizabeth Houghton, which got me thinking that this could be James mother.
1891 Census has the following:
1891 Census - 49 Westworth St.
John 'Haughton' (should be Houghton)? Aged 43, hydraulic crane driver/cleaner?,
Born bonsall Derbyshire.
Wife: Elizabeth 'Haughton' age 34, born rugby Warwickshire.
C1: Violet L Haughton, age 11, w Gorton
C2: James W A Haughton, age 14, apprentice fitter, w Gorton
1881 Census - 4 Nellie St.
John Houghton aged 33 born abt 1848, labourer, birth bonsall Derbyshire.
Wife: Elizabeth Houghton, aged 25, born 1856 in rugby, Warwickshire.
C1: James W. Houghton, 4, born abt 1877, born W Gorton, Lancashire
C2: Violet L Houghton, 1, born abt 1880, born W Gorton, Lancashire
C3: Earnest Marsland, listed as visitor, aged 6, born about 1875 in Manchester.Then after this I’m not sure if the following is linked but appears to be
1861 Census - no. 9 ??
William Houghton, aged 45, leather factory worker, born cromford
Wife: Elizabeth Houghton, aged 34, born bonsall
c1: john Houghton, aged 13, born cromford
c2: Sarah Houghton, aged 11, born cromford1851 Census - Moon ??
William Houghton, aged 32, Cotton -- Grinder, Derbyshire
Wife: Tacey Houghton, aged 40, born bonsall
c1: john Houghton, aged 3, born cromford
c2: sarah Houghton, aged 1, born cromford
c3: martha bonsall, niece, aged 10, born chapel le frith, Derbyshire.
(this census also indicates John/Sarahs mother was Tacey rather than Elizabeth!)The Constance element certainly makes things interesting but firstly I would like to substantiate any of this information, any advice, tips most welcome.
Thanks