Hi Tony,
My 3rd great grandmother was a Mary Harker born abt 1801 in Manchester although she married 05 Oct 1820 at Helmsley to Thomas Hildrick (Hildrith). Mary and Thomas lived and brought their family up at Nawton in the Parish of Kirkdale.
I believe that Mary had a brother Ephraim also born Manchester abt 1799. Ephraim married Ann Peirson 28 Apr 1824 at Rosedale, Yorkshire. The reason I believe that Mary and Ephraim are sister and brother is that the two youngest children of Mary are visitors in Epharim's household on the 1851 census, although their surname was incorrectly enumerated as Hildrey. There is also further visitations between the families on later census.
I have been unable to locate the batisms of either Mary or Epharim(Ephraim) so have not been able to take the family back further.
Although they were both born in Manchester, I believe that the family was originally from Yorkshire.
If you have come across these two, or have any further information on them, I would be very greatful.
Kind Regards
Lainey