Well, Burke’s Extinct Peerage (1883), p 118 gives a rather perfunctory mention of Josiah the elder:
“III. Josiah, lieut. of dragoons.”. That is it.
If you look in W. H. Hallam, History of the Parish of East Lockinge (1900), you will find the following reference:
East Lakinge " mentioned in the list of Abbey possessions
in the Reign of Henry VIII. All trace however, of any
original buildings would have been lost (if they existed so
late) in 1821, when the entire homestead was destroyed by
fire.
Matthew Wymondsold died in 1757, at Stanstead, but was
buried at Lockinge in the vault of the Lords of the Manor,
where his wife and a son had previously been buried.
He had served as Sheriff of the county in 1737. His sons
successively held the Manor.
Francis Wymondsold died in 1759.
William Wymondsold died in 1779.
Charles Wymondsold, who was Sheriff in 1760, married
as his first wife the daughter of Robt. Knight, Esq., after-
wards created Lord Luxboro' of the kingdom of Ireland, and
M.P. for Castle Rising, and afterwards made Earl of
Castlereagh. Of his second wife, it is not known out of what
family she sprang, but she is believed to have been of Irish
extraction, as she had a mother living in that country whom
she crossed the channel to visit with Mr. Wymondsold soon
after they were married.
Mr. Wymondsold died August 23rd, 1776, leaving his
estates to his widow Sara, who some time before 1790,
married as her second husband, John Pollexfen Bastard,
Esq., a member of a well known and wealthy family who
had been settled in Devonshire since the Conquest.
S.S.