1891 census
Richardson, Henrietta 31 Stafford, Staffordshire Wife Salford Lancashire
Richardson, Henrietta 5 Salford, Lancashire Daughter Salford Lancashire
Richardson, Mary E 7 Salford, Lancashire Daughter Salford Lancashire
Richardson, Thomas 9 Salford, Lancashire Son Salford Lancashire
Richardson, William 31 Salford, Lancashire Head Salford Lancashire
RG12/3217 Folio 114 Page 6
at the top of the next page is another daughter Mary!!
Richardson, Mary A 2 Salford, Lancashire Daughter Salford Lancashire
RG12/3217 Folio 115 Page 7
also this is a possiblity for William in the 1871 census
George Gerdon 14 Salford, Lancashire, England Servant Salford Lancashire
Anna Richardson 12 Salford, Lancashire, England Daughter Salford Lancashire
Elizabeth Richardson 16 Salford, Lancashire, England Daughter Salford Lancashire
Emma Richardson 54 Manchester, Lancashire, England Wife Salford Lancashire
Emma Richardson 14 Salford, Lancashire, England Daughter Salford Lancashire
James Richardson 24 Salford, Lancashire, England Son Salford Lancashire
John Richardson 56 Ringley, Lancashire, England Head Salford Lancashire
John Richardson 16 Salford, Lancashire, England Son Salford Lancashire
Joseph Richardson 7 Salford, Lancashire, England Son Salford Lancashire
Mary Richardson 15 Salford, Lancashire, England Daughter Salford Lancashire
William Richardson 20 Salford, Lancashire, England Son Salford Lancashire
RG10/4024 Folio 87 Page 6
Hope this helps
Nicky