She can be found with her husband and 5 children on the 1911 census, but I'm afraid we are not allowed to give information from that on here.
Family in 1901 Middleborough Road Coventry
RG13 Piece number 2910 Folio 67 Page 31
John B Costley Head 39 Cycle Enameller Froghall,
Amelia Rose Costley Wife 34 Gibraltar
John R Costley Son 8 Wolverhampton, Staffordshire
William A Costley Son 6 Wolverhampton, Staffordshire
Geo Albert Costley Son 4 Wolverhampton, Staffordshire
Gertrude Ada Costley Daughter 1 Coventry, Warwickshire