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The 1881 census actually says he was with Prudential!

By 1891, the family are in Liverpool:
Class: RG12; Piece: 2957; Folio: 12; Page: 18
45 Hewchell Street, Everton, Liverpool, Lancashire
Kennett, Charlie Head M 37 Porter b East Dean, Sussex (says Suffolk on census!)
Kennett, Fanny Wife F 40 b Chichester
Kennett, Charlie Son M 13 Draper's Assistant b Littlehampton
Kennett, Kathleen A Daughter F 11 Scholar b Horsham
Kennett, Arthur A A Son M 10 Scholar b Horsham
Kennett, Reuben E Son M 8 Scholar b Liverpool
Kennett, Richard E Son M 4 Scholar b Liverpool