Hello, Osborn ....
There are two baptisms for Mary Elderkin on the IGI - both in Barham, Hunts, which is 4-5 miles from Sawtry, given in 1851 as her birthplace.
5 Jan 1775, daughter of William and Sarah
20 Feb, 1779, daughter of William and Mary
Both are entries submitted by a church member rather than official extractions, so need a pinch of salt.
This is shown by the fact that there is another baptism AFTER the second Mary:
Sarah Elderkin, 19 Sept 1779, Barham, to William and Sarah.
So were there two Williams in Barham - one married to a Sarah and the other to a Mary - or is the second "Mary" baptism in 1779 a mistake? The Biggs family tree says that the 20 Feb baptism was in 1778, not 1779, and was an Elizabeth rather than another Mary.
http://www.biggsworld.com/biggs2003.pdfA William Elderkin was baptised in Sawtry on 10 Feb 1750, son of William and Eleanor. He was one of several children born to this couple, according to the IGI:
George Elderkin - Bap 18 Oct 1747 Sawtry
Mary Elderkin - Bap 05 Mar 1748 Sawtry
Mary Elderkin - Death: 06 Jul 1752
William Elderkin - Bap 10 Feb 1750 Sawtry
Elizabeth Elderkin - Bap 11 Feb 1753 Sawtry
Eleanor Elderkin - Bap 05 Jan 1755 Sawtry
Benjamin Elderkin - Bap 27 Oct 1756 Sawtry
Elizabeth Elderkin - Bap 27 May 1759 Sawtry
Mary Elderkin - Birth: 1760 All Saints, Sawtry
Mary Elderkin - Death: 19 Jun 1761
John Elderkin - Bap 08 Nov 1761 Sawtry
These are also all member entries rather than controlled extractions. There is no evidence that this William b 1750 was the William baptising children in Barham.
But the naming conventions suggest that William and Eleanor of Sawtry were the grandparents of "our" Mary who married Richard Green (and later John Osborn).
Hope this helps a little - I have not gone any further back with the Elderkins as yet, as the above all comes from non-official records and needs confirmation before going on....
Wendy
PS
For Robyn in australia (redgum) and anyone else that might still follow this thread, the Biggs family tree referenced above is based extensively on the work of June Biggs, who is acknowledged on the Biggs home page.
Robyn mentioned last year that:
"The booklet was completed Dec 1980 and many years of research must have gone into the compiling of the English records.
They date back to the 1600s and include Heath Tax returns, Letters of Administration and Parish Relief records to name only a few.
Well beyond what the internet can provide even today.
The work is attributed to "our fourth cousin who, incidently, is the secretary of the NW Kent Family History Society".
My guess is this is someone from Elizabeth's line."
Snap - the two are one and the same! June Biggs retired from being the NWKFHS Secretary in 1985. And yes, the Biggs do stem from Elizabeth.