Jac,
Please peruse the following carefully as candidate for your Clark folk.
In June Qtr of 1867, the marriage of SMITH SCORFIELD married MARGARET MUTER ( registered within Morpeth Registration District.
By 1881 ( 5119-58-62) Smith and Margaret were in North Seaton with a family that included one yr old dtr, Barbara born Woofhorn ( but this is name of parish, in which North Seaton)
Margaret dies 1885. Smith dies 1888. Barbara, 11 yrs, lives with uncle on 1891 census ( 4260-43-2)
In Newcastle in 1899, Barbara marries an Edward Clark.
In Sept Qtr of 1900 the birth of William SMITH Clark is registered in Newcastle.
On 1901 census ( 4816-49-33) Edward 30, born Bellingham and Barbara 21, are in South Gosforth with son William S Clark, 8 months, born Newcastle.
By 1911 census Edward 39 and Barbara 32 have William Smith, 10, Edward 6 and John 2.
I have earlier info on Bellingham-born Edward, but I will wait for to consider the above .
Michael Dixon