Hi and welcome to Rootschat - surname is Grealey on both 1881 and 1891 images but Margaret's birth was registered as Graley in Huddersfield
To help with additional info - here's the 1891 details of the family. All children were b Huddersfield - only Michael & Mary were b Ireland
Michael Grealey/Graley 43
Mary 59
James 20
Eliza A 16
Bridget 15
Margaret 12
Michael 9
William Thorpe 52 boarder b Huddersfield
Minnie Thorpe 49 boarder ditto
RG12 Piece 3566 Folio 77 Page 15
The 1881 entry has them as Grealey - no additional children