Well if you want to spend £9.25 of your money on one certificate that's OK with me but why not visit the Beds Archives & view the same certificate for Free (& pay just a small fee to get it printed), & seeing as I did earlier today there are numerous marriages in Wymington of your family members you will save yourself a fortune. Also you cannot buy certificates for marriages before 1837 - because there weren't any, but the marriage entry info is available from the parish records.
Anyway enough of that.... just send me the money for the following info...
Wymington marriage 6 Nov 1843Joseph Perkins, widower, labourer, father John Perkins labourer to Elizabeth Gilbert, widow, father John Laughton, shepherd. Both were of full age & from Wymington. Witnesses George Day Church & Caroline Church, & George Day Church - the parish clerk. (I am assuming that 1st witness George Day Church is son of his eponymous father - the clerk)
Wymington marriage 26 Sept 1819John Gilbert to Elizabeth Morton both of this parish. OK why Morton ? well that's what the IGI has & true it does look like Morton on the PR entry but it is not that clear, and most likely the IGI transcriber did not bother to correlate this with her signature, which was signed & not marked with an 'x', it was Elizabeth Laton, nice & clear. Witnesses were Daniel Weekly & ?someone? Laighton.
So now we know Elizabeth's maiden name was, Laighton, Laughton: daughter of John. The 1851/61/71/81 censuses says she was born 1802 Oakley but I cannot find a baptism at Oakley that fits. There is one born 1805 Milton Ernest ? but who knows.
Wymington burials. There is an entry for John Gilbert before the start of those in 1834 - it is blank except for his name & year 1833, plus a note in the margin saying 'omitted before'
Wymington marriage 11 Jan 1825 Joseph Perkins, bachelor to Sarah Desborough spinster: witnesses William Perkins & Sarah Perkins
Wymington baptisms children of Joseph & Sarah Perkins, labourer
22/05/1825 Elizabeth (born 14/01/1825)
19/07/1829 Selina - buried 30/01/1838 age 11
Sarah 08/08/1830
Wymington baptisms children of John & Elizabeth Gilbert, shoemaker
17/09/1820 Lawton
16/05/1824 William (born 05/03/1824)
21/03/1826 Sarah (born 08/11/1825)
25/05/1828 Rebecca (born 13/03/1828)
13/11/1831 Marianne
So on the 1851 census image where it has Joseph & Elizabeth Perkins, labouer & wife, the children William b 1822 & Mary Ann born 1831 that claim to be shoemaker's son & daughter, that have been given the Perkins name are in reality the children of John & Elizabeth Gilbert, not surprisingly confusing.
I have more - but I await my royalties..

cheers John