Hi Suestew,
This one perhaps?
1861RG9/596 75 20
Brighton, Sussex
76 Elder StreetFrancis Colwell, head, 52, Engine Smith, b. Hants Ambleton
Eliza, wife, 50, b Middlesex Pentonville
Eliza, dau, 19, laundress, b. Middlesex Marylebone
Lucy, dau, 16, laundress, b. Essex Romford
Henry, son, 12, scholar, b Sussex Brighton
Charles, son, 10, scholar, b. do.Thomas, son, 7, scholar, b. do.
William Chestnut, lodger, 57, Ground Digger, b. Portslade
Martha Chestnut, wife, 48, b. Brighton
Tanja

He must have been born after the 1851 census - he's not with the family shown at HO107/1645 287 22