The will is a bit of a nightmare and just a couple of names but the codicil added Nov 1842 is a lot more informative. The only headache is that there seems to be a clutch of baptisms to find.
Best guess using the age of 63 in the death index is the will is that of Audley Mucklow c1790-1853
Names & Relationships in Will
Ann Muxlow - wife
Robert Mucklow - brother
Edward Mucklow -brother
Codicil added Nov 1842
Mary Muxlow - wife
Edward Mucklow - brother
Edward Mucklow -nephew
Ann Mucklow - sister
John Mucklow - nephew; only son of Robert - brother
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The only baptism record I have so far is that of Robert -brother- bap 1797, Leadenham, son of Audley and Elizabeth.
I suspect that marriage is the one at Buslingthorpe Lincs in 1787, Audley Mucklow (full age" to Elizabeth Byron "full age". Also related to that marriage is Copy Will and Codicil of Edward Byron of Middle Rasen, farmer; To daughter Elizabeth, wife of Audley Mucklow of Leadenham, farmer, and her heirs and assigns, messuage or tenement with yard and appurtenances on the south side of the North Street of Middle Rasen, called Cartwright House, now in the tenure or occupation of Robert Bestoby his undertenants or assigns.
In terms of baptisms I'm missing one for Audley c1790-1853, Edward c1795 and Ann n/k
Apart from the baptisms there's the change of wife between the will and codicil, that's got me stumped.