1921 free index Kidderminster has this family but no Matilda
Enoch Lock 1868 Wellington, Shropshire
William Enoch Lock 1897 Cookley, Worcestershire
George Lock 1899 Cookley, Worcestershire
Arthur Lock 1905 Kidderminster, Worcestershire
Lionel Gilbert Lock 1910 Kidderminster, Worcestershire
Stanley Lock 1914 Kidderminster, Worcestershire
LOCK, LIONEL  GILBERT     mmn PEARSON  
GRO Reference: 1910  J Quarter in KIDDERMINSTER  Volume 06C  Page 217
LOCK, STANLEY  WILLIAM  mmn   PEARSON  
GRO Reference: 1914  J Quarter in KIDDERMINSTER  Volume 06C  Page 167
Edit to add 
Matilda Pearson was previously married to a Price
Registration Quarter:   1896 Jul-Aug-Sep
Registration District:   Kidderminster Volume:   6c Page:   324
Louisa Ann Hancox
George Knight
Enoch Lock
Matilda Price
1901 census Piece   2764 Folio   41 Page number   7
Enoch Lock 33   Head Romsley, Shropshire
Matilda  29   Wife Lye, Worcestershire
Mary Matilda Price 8   
Rosetta Price 6   Daughter
William E  4   Son
George E  2   Son
LOCK, WILLIAM  ENOCH     mmn PEARSON  
GRO Reference: 1897  J Quarter in KIDDERMINSTER  Volume 06C  Page 224