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| Date from | Date to | Event | Source |
|---|---|---|---|
| 25.11.1778 | Lieutenant | CSORN | |
| 16.4.1781 | Commander | CSORN | |
| 16.4.1781 | Battle of Porto Praya | ||
| 16.4.1781 | 23.7.1781 | Terror (8)
1779-1812 , Commander, and Commanding Officer ADM 6/22/361British 8 Gun Unrated Bomb Vessel Issued by George JohnstonBritish Naval Sailor Service 1744-1787 Confirmed 9.11.1781 | BWAS-1714 |
| 22.8.1781 | Captain | ADM 6/22 | |
| 22.8.1781 | 7.6.1782 | Romney (50)
1762-1804 , Captain, and Commanding Officer ADM 6/22/428British 50 Gun 4th Rate Ship of the Line | BWAS-1714 |
| 25.11.1782 | 10.1783 | Rotterdam (50)
1781-1806 , Captain, and Commanding Officer ADM 6/22/545British 50 Gun 4th Rate Ship of the Line 1799 Renamed "Princess Caroline" | BWAS-1714 |
| 18.4.1799 | 17.4.1800 | Cambridge (80)
1755-1808 , Captain, and Commanding OfficerBritish 80 Gun 3rd Rate Ship of the Line | BWAS-1714 |
| 1.1.1801 | Rear-Admiral of the Blue | CSORN | |
| 23.4.1804 | Rear-Admiral of the White | CSORN | |
| 9.11.1805 | Vice-Admiral of the Blue | CSORN | |
| 28.4.1808 | Vice-Admiral of the White | CSORN | |
| 31.7.1810 | Vice-Admiral of the Red | CSORN | |
| 4.12.1813 | Admiral of the Blue | CSORN | |
| 12.8.1819 | Admiral of the White | TRN3 | |
| 22.7.1831 | Admiral of the Red | TRN3 |
This officer was promoted to the rank of Post-Captain, Aug. 22, 1781; Rear-Admiral, Jan. 1, 1801; Vice-Admiral, Nov. 9, 1805; and Admiral, Dec. 4, 1813. Towards the close of the American war, he commanded the Rotterdam, of 50 guns; and during a part of the war with the French republic, the Cambridge an 80-gun ship, bearing the flag of the Port Admiral at Plymouth.