I don't know if Mary Ann was the daughter of John and Susanna Kimberley, baptised in Pinchbeck in 1793, but there are some newspaper references:-
Stamford Mercury 5 February 1813
At Pinchbeck, after a lingering illness, borne with truly christian fortitude, Mrs. Kimberley, wife of Mr. John Kimberley, farmer.
Susanna Kimberley, wife of John, buried at Pinchbeck on 23rd January 1813, age 38
Also, Mary Kimberley, wife of John, buried at Pinchbeck on 26th March 1818, age 65
Stamford Mercury 19 December 1828
To be SOLD by AUCTION
IN PINCHBECK
Lot 6. A parcel of Arable Land,bounded by lands of Mr. John West as well North as South and East, and lands of—— Frost West now in the tenure of Mr. John Kimberley, containing..................2 1 18
David