I was following the same 1861 census going from info on 1881 census. Walter (Thurston) Williams was born june q 1859 Ashton under Lyne, mmn YATES??, and Emily (Sarah) Williams born dec q 1860 Chaple le Frith mmn Harvey?? The fact that the 1881 and 1861 census give father William's pob as Gt BADDOW, Essex for me is a positive plus ages all add up
John