Matthew Graham married Jessie Thornley Jul-Sep 1877 Middlesbrough district. Their children have MMN Wilkinson on the GRO index but I can't find her birth (supposedly around 1849 Ormesby or Guisborough, Yorkshire) or her first marriage, if there was one.
This is the 1881 census:
https://www.ancestry.co.uk/interacti...=successSource
And the 1891 census:
https://www.ancestry.co.uk/interacti...=successSource
Any ideas?