May have found marriage IGI familybeta, although it doesn't name Walter's father - it did show Walter's father's name after all

- thanks Anna for confirmation
Walter JONES father WilliamMarried 4/8/1853 St. Paul Finsbury London
Catherine Charlotte JOHNSON father AugustusCatherine Charlotte JOHNSON
4/7/1830 Penzance, Cornwall
father Augustas JOHNSON Sailor
mother MaryThis ties in nicely with my post no. 21 re: christening details
1851c 91/2, Thomas Street, Saint John Horsleydown, Southwark
HO107 Piece:1559 Folio:369 Page:56
PHILLIPS, Mary Ann Wife Married F 30 1821 Wife Of A Mariner Penzance
Elizabeth Blaney Daughter F 3 1848 St Johns Surrey
Walter Thos Son M 0 (6 MOS) 1851 St Johns
Catherine Mother Widow F 76 1775 Taibach
JOHNSON, Catherine C Niece Unmarried F 21 1830 Penzance