No sure but maybe easier to keep everything together as they seem to get around the Country.
Rosetta Mary CECIL's Christening has Father WILLIAM, Mother JANE and;
Marriage Record (Eng/Wale) 1 June 1857, has her Father as WILLIAM, And Phillips Father HENRY Frost
Christenings;
FREDERICK Cecil 19 April 1829
ALFRED Cecil 15 April 1832
At S Nicholas , Brighton, Sussex , Parents William and Jane
1851 Census, 4 Norfolk St, Brighton, Sussex has;
Jane CECIL, 53, Tailors Widow, born Weymouth, Dorset
Frederick, 22, Tailor
Alfred, 19, Tailor
ROSE, 17, Embroidress
Jane, 14, Servant
All born Brighton, Sussex
HO107/1646/371/14
Familysearch Pilot has a John Francis CECIL, Christened 7 January 1816 to William CECIL and Jane HAYWARD
Union St Chapel Independant, Brighton, Sussex
Jane Eliza Cecil, 1826, St Nicholas
Ellen Jane CECIL, 10 July 1836, St Nicholas
POSETTA MARY Cecil, 23 March 1834, St Nicholas
Beatrice Jane Cecil, 20 June 1830, St Nicholas
Marriage of a LOUISA Ann Cecil, Father WILLIAM to David HOBBS 1942, Brighton.
##There is a BURIAL of a WILLIAM Cecil, 20 August 1850, Brighton, Sussex##
1841 Census
5 Norfolk St,
Brighthelmstone, Brighton, Sussex
HO107/1122/17/Brighthelmstone
William CECIL, 51, Tailor
Jane, 42
Louisa, 20
Frederick, 12
Alfred, 9
ROSA, 7
Jane, 5
All born in County