Hi
Was Stanley their first born? If not, you may have to go back further than 1900 if they had older children. Also - although they had Stanley in Macclesfield, they may have married in another area
Have you searched the FULL GRO index or only the partially transcribed one?
You can now search the full GRO index yourself free of charge at
www.ancestry.co.uk/search/rectype/vital/freebmd/bmd.aspx. Choose SEARCH THE FULL IMAGES (BETA)
Had a quick look on the 1891 for Elizabeth Cottrell in the macclesfield area. There were'nt any but the nearest was this one in Dukinfield so I tracked her back to 1881 as her father had died by 1891
32 Tame St
Dukinfield, Cheshire, England
RG11 Piece 4053 Folio 94 Page 42
William COTTRELL M 38 M Biddulph, Stafford, England
Rel: Head
Occ: Puddler In Iron Works
Margaret COTTRELL M 31 F Newcastle Under Lyme, Stafford, England
Rel: Wife
David COTTRELL 13 M Walstanton, Stafford, England
Rel: Son
Occ: Cotton Piecer
Hannah COTTRELL 11 F Walstanton, Stafford, England
Rel: Dau
Occ: Cotton Weaver Half Time
William H. COTTRELL 9 M Walstanton, Stafford, England
Rel: Son Handicap: Imbecile
Occ: Scholar
Ralph COTTRELL 7 M Walstanton, Stafford, England
Rel: Son
Occ: Scholar
Emily COTTRELL 2 F Odd Rode, Cheshire, England
Rel: Dau
Elizabeth COTTRELL 5 m F Stalybridge, Cheshire, England
Rel: Dau