PLIMMER, John (Grimwade p.628)

[silverly]

4 December 1747 John Plimmer son of George and Margaret Plimmer birth recorded at Saint Dionis Backchurch City of London.

14 October 1749 George Plimmer of Fenchurch London Cutler and Toyman will proved at London. Reference: TNA PROB 11/774/138

May - Dec 1771John son of George Plimmer Leatherseller deceased admitted into the freedom of the City in the Company of Leathersellers.

To sum up, it appears these entries are associated with the subject gentleman.