Way after initial conversation but posting to 'fill in' some information
Wells/Tucker marriage 25 Feb 1844 St Mary Lambeth. She's the daughter of Thomas Drewell Tucker and Susannah Hanscomb, not sure but possibly also sister of Edwin Zachariah Mortram Tucker.
Joseph Wells previously married Elizabeth Ann Mortram 1815-1837.
Joseph Richard Wells baptised 18 Aug 1844 St John The Baptist, Margate
re Mary Ann 'unknown name' - Joseph Richard Wells married Mary Ann Haughton 9 Jul 1867 (I have marriage certificate). On nearly all other records her family listed as Horton not Haughton. Dau. of Thomas Horton b c.1811 Sittingbourne, Kent and Mary Ann Douglas who was probably Mary Ann Douglas bap. 4 Jan 1807 Gillingham, Kent. Horton/Douglas marriage 1842. Her second marriage, previously married William Walker 26 Aug 1831 St Luke, Old Charlton. Mary Ann Wells nee Horton's half brother John Walker married Lavinia Strutt, half brother James Walker married Sarah, children Thomas, John and Alice.