I have been mulling over the story of Ann Marriott who married John Green in Gamlingay, Cambridgeshire on 19 May 1818.
I think it goes like this:
[1] 04 Nov 1741 Robert Marriot married Margaret Pearce in Swavesey, Cambridgeshire; by banns [findmypast]
and had children William (bapt. 03 Oct 1742), Mary (bapt. 20 Apr 1744), Robert (bapt. 01 Jun 1747)
[2] 12 May 1752 James Marriot was baptised in Swavesey, Cambridgeshire; father Robert, mother Margaret
Notes: inf [infant?, infirm?] [findmypast]
Meanwhile ...
[3] 30 Apr 1758 Ann Giddons was baptised in St Peter Church, Boxworth, Cambridgeshire, father Robert Giddons [findmypast]
[4] 02 Jun 1762 Robert Marriot buried in Swavesey, Cambridgeshire [findmypast]
[the only burial of a Robert Marriott recorded in Swavesey 1749-1789, or indeed anywhere in Cambridgeshire]
It is possible that James married twice. If so, the first (shotgun?) marriage lasted just nine weeks ...
[5] 10 Sep 1778 James Marrit (BT Marriot) (otp) married Ann Dodson (otp) in Swavesey, Cambridgeshire; by banns [findmypast]
[6] 19 Oct 1778 Thomas Marriot buried in Swavesey, Cambridgeshire; Note: son of James & Ann [findmypast]
[7] 16 Nov 1778 Ann Marriot buried in Swavesey, Cambridgeshire; Note: wife of James [findmypast]
James then got another lady into trouble ...
[8] 16 Nov 1783 James Marritt Giddings baptised at Boxworth, Cambridgeshire, mother Ann Giddings [findmypast]
Some time before 1785 James (a farmer, see 12) moved to Great Gransden ...
[9] 9 oct 1785 marriage James Marritt (bach of Great Gransden) and Ann Giddings (spin otp), in St Peter's Church, Boxworth, Cambs, by licence
[Phillimore 1909 Cambridgeshire Parish Records v3 p10 has marriage; licence is not in Cambridge Marriage Licences 1594-1979]
[The Great Gransden Parish Register has just four Marratt records. There is no continuous history of the family there:
27dec1783 marr Thomas Bannister (X) bach otp and Elizabeth Marrat
16sep1787 baptism Sarah Marratt d of James [farmer BT] and Ann
18jul1789 burial Margaret Marrat, widow
14dec1789 baptism Ann Marratt d of James [farmer BT] and Ann
]
[10] 11 Sep 1787 Sarah Marratt baptised in Great Gransden, Hunts; father James Marratt, mother Ann [Great Gransden PR]
[11] 18 Jul 1789 burial of Margaret Marrat, widow [is this Margaret Pearce?] [Great Gransden PR]
[12] 14 Dec 1789 Ann Marratt baptised at Great Gransden, Huntingdonshire, father James Marratt [farmer-BT], mother Ann [Great Gransden PR]
Then the family moved back to Swavesey ...
[13] 26 Jun 1791 Samuel Marriot baptised in Swavesey, Cambridge; father James Marriot, mother Ann [findmypast]
[14] 11 Jun 1793 James Marriott buried in Swavesey, Cambridgeshire; son of James & Ann [so probably a child] [findmypast]
[15] 12 Jan 1794 Eleanor Marritt baptised in Swavesey, Cambridge; father James Marritt, mother Ann [findmypast]
[16] 26 Jul 1795 James Marriott baptised in Swavesey, Cambridge; father James Marriott, mother Ann [findmypast]
[17] 22 Oct 1797 Joseph Maritt baptised in Swavesey, Cambridge; father James Maritt, mother Ann [findmypast]
[18] 19 May 1818 marriage John Green and Ann Marriott in Gamlingay, Cambridgeshire
[19] 29 Jun 1845 Ann Marriott (formerly Giddons) buried in Bolnhurst, age 87 (born about 1758) [Bolnhurst Burials #180]
[20] 8 Dec 1870 Ann Green (formerly Marriott) buried in Bolnhurst aged 80 (born about 1790) [Bolnhurst Burials #288]
I can't find the death of James Marratt. There is
03 Jun 1846 James Marriott (otp) buried in Swavesey, Cambridgeshire; age 76 (so born about 1770 - the age doesn't look right)