Jonathan Knevett (also spelt Knevitt), married Mary on October 29, 1741 at Saint Paul Covent Garden, Westminster, London, England.

National Archives (UK)
Reference: ACC/0891/02/03/0120
Manor of Ealing with Acton: Copy of court roll.
Admission of Mary Knevett on the death of John Jones, (April 8, 1751).

Reference: ACC/0891/02/01/0033
Manor of Ealing with Acton: Copy of court roll.
Admission of Jonathan Knevett and Mary his wife, daughter of John Jones, and surrender to the use of her will.
Property: The 'Salutation', Old Brentford, in which John Jones lately dwelt, and 2 little houses adjoining on the west, (May 8, 1751).

Reference: ACC/0891/02/01/0034
Manor of Ealing: Bond with conditional surrender for security of payment of £150. Jonathan Knevett of Old Brentford, gardener, to John Matts of Old Brentford, fisherman.
Property: As in ACC/0891/02/01/0033, (December 19, 1751).

Reference: ACC/0891/02/01/0035
Conditional surrender by Jonathan and Mary Knevett to John Matts, (April 1, 1752).

Reference: ACC/0891/02/05/0268
Manor of Ealing: Attested copy of conditional surrender.
Jonathan Knevett and Mary, his wife, to William Jones of Old Brentford, victualler.
Property: Messuage and premises called the Salutation, (October 8, 1755).

The Proceedings of the Old Bailey
Reference: t17511204-19
Jonathan Knevitt, (Mr. Knevett), mentioned in passing in trial of William Hughes, theft with violence : highway robbery, (December 4, 1751).