ref Liddle & Jane, heres the family in 1901 - to find further kids you'd have to trawl the BMD Indices - and sadly, before 1911, mothers maiden name isnt shown.
1901 - RG13/4686; Folio: 25; Page: 41 - Thornley
Percy Street
Liddle Dobson 30 Head Stone QuarreyMan Thornley
Jennie Dobson 26 Wife Trimdon
Hannah E Dobson 3 dau Thornley
Grace E Dobson 1 dau do
PS. Couldnt see Graydon Dobson birth ? (In Easington RD) not a 2nd forename was it ?