Date of death confirmed from primary sources at the Public Record Office, Kew, United Kingdom. Letter P 135 in document ADM1/247. 'I am sorry to conclude my letter with informing their Lordships that Lieutenant Raper, commanding the Expedition Cutter, died on the 29th' from Vice Admiral Sir Hyde Parker dated 2 Oct 1796, Martinique [West Indies]. ADM 1 Admiralty, and Ministry of Defence, Navy Department: Correspondence and Papers, Subseries within ADM 1 Original Series (1st group): 1660-1839, Subsubseries within ADM 1 Letters from admirals etc. - Jamaica Letters from Senior Officers, Jamaica - 1796.