Now, at last, Wendy (Woowoo),
Manged to get to the CCRO this morning for a lightning 45 minutes or so, and had a peek first in the Kingston parish transcripts. A photcopy of the original handwritten marriage entry simply says: 13th March 1800: Robert Leader and Sarah Story.
On a transcript elsewhere of the same event is added the names of 2 witnesses: John Clark and David Royston.
There's only one earlier entry for this family in Kingston, and that says: Baptism on 23-10-1796: William Leader, son of George and Mary. Private baptism - received into Church.
Presumably the family only arrived in Kingston then...
I then looked in the Bourn transcripts, where the earliest Leader baptism was in 1802. Sarah Story's baptism was there on 04-10-1781. And here, with relevant burials are the baptisms of her other siblings in Bourn:
First of all, a marriage: 13-10-1765: Richard STORY (x) bachelor of Arrington and Sarah ANDERSON spinster. Witness: John Blowes
Baptism: 26-01-1766: Richard STORY s. of Richard and Sarah; buried 17-08-1767
Baptism: 24-05-1767: Henry STORY s. of ditto
Baptism: 08-08-1768: Richard STORY s. of ditto; buried 13-12-1768.
Baptism: 19-02-1770: Thomas STORY s. of ditto; buried 01-08-1770.
Baptism: 22-09-1771: Jane STORY d. of ditto; buried 30-06-1773.
Baptism: 15-05-1774: John STORY s. of ditto
Baptism: 16-02-1777: Mary STORY d. of ditto
Then Sarah, and then a burial of their mother Sarah STORY on 06-07-1788, followed by another marriage:
02-01-1791: Richard STORY widower (x) and Ann EDWARDS widow (x). Witness: Thomas Hone.
...followed by a baptism on 13-03-1791: Thomas STORY s. of Richard and Ann.
Two further burials: 29-12-1805: Ann STORY aged 55
03-11-1811: Richard STORY lab. aged 70.
I looked then in Arrington, but there were no STORY's there.
...and I've only put one witness in for those marriages, as the other name was obviously a church clerk, as his name occurred frequently.
Hope this helps a bit,
regards, keith.