So I promised to be back.
I have always been missing my GGGGFather’s first marriage. With your collective help with the signatures it seems that the trail for James’s missing first marriage is now this>
1841 Census [HO 107, Piece 731, book 6, folio 43, p. 11].
2 Crown Place, Crown Court, Temple Bar, Strand, Westminster.
James Lewis, 25, Bookseller, not born in same county.
Elizabeth Lewis, 20, not born in same county.
Mary Lewis, 10, born in same county.
G.M [i.e. W] Lewis, 1, born in same county.
After many decades I managed to track down Mary at her marriage to William Daniels in April 1860 – age 29. She then appears in the 1861 census as aged 31, born St Pancras; in 1871 aged 41, born St Pancras and in 1901 [as Mary Greenwood], aged 66, born St Pancras. She died in Southwark Infirmary in January 1908 when her age was given as 73. I’m quite happy that these are one and the same person.
So her baptism was the difficulty because there wasn’t one that matched in c1831 (and, not least, because other children in the same enumeration of the 1841 census seem to have been given their exact age). Anyway the only possible baptism was>
St Pancras Parish, 6 July 1828.
Mary, daughter of James & Mary Lewis, Collier Street [St Pancras]. Father’s occupation: Book Binder [He was connected with the book trade all his life].
This leads to James’s marriage to Mary Norman at St Martin-in-the-Fields: 22nd July 1827. This was the signature that was worrying me.
So thank you to everyone who compared the signatures. I’m now going to enter this as "probably" James Lewis’s first marriage.