Hello Phil
In 1861 Harriet Hewer is a Widow living at Thames Street, Staines with her grandchildren Jane Sherwood aged 12 and Caroline Sherwood (not Shieves this time) aged 11.
If you are still looking for Charlotte and family, the following records may be worth investigating further:
Marriages Sep 1847
St Geo Han Sq Vol. 1 Page 25
BIRD, Jane
Hanbury, Charlotte Bateman
HOLLAND, Thomas
KENNEDY, Mary Jane Clark
MELVILLE, George John Whyte
PURVIS, Arthur
RUSE, John
SHEARWOOD, Henry
Yewer, Caroline
Births Dec 1848
Staines Vol. 3 Page 387
SHERWOOD, Jane
Births Mar
Staines Vol. 3 Page 415
Sherwood, Caroline
Deaths Sep 1850
Staines Vol. 3 Page255
Shearwood, Caroline
(but why Caroline if this is Charlotte!!)
Regards
Ivan