Maary was Henry's 7th child
Roberdean was M.P. for Southwark and Lord Mayor in1794
He was Colonel of HM Artillery. Descended John Archdeacon of Malta.
Navy Records Society
Guess
Killed in a duel
One family record shows Mary's death as april 1868,she was unmarried.
#178 Will dated 12 Mar 1761
Will dated 30 Jan 1796
Died unmarried