This might be a complete red herring, so you need to get the birth certificate for Joyce first, but according to lancashirebmd.org.uk there are 3 likely contenders to be Joyce's mother. All born in Mossley, 3 sisters - Ellen CROSSLAND born 1903, Alice 1908 and Christina 1910. Parents James CROSSLAND and Mary Ann HYDE, living at 20 Lancashire Cotts, Mossley in the 1911 census. Christina appears to have died unmarried, born 12 Feb 1910, died June 1970 Ashton age 60, vol 10b, page 327.