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| Date from | Date to | Event | Source |
|---|---|---|---|
| 1764 | Passed the Lieutenant's Examination ADM 107/6/68 | RNLPC | |
| 20.4.1771 | Lieutenant | CSORN | |
| 8.7.1780 | Commander | CSORN | |
| 8.7.1780 | 24.8.1781 | Cormorant (14)
1776-1781 , Commander, and Commanding Officer ADM 6/22/170British 14 Gun Unrated Sloop Issued by George JohnstonBritish , Portugal
Naval Sailor Service 1744-1787 Confirmed 14.9.1780 | BWAS-1714 |
| 18.9.1782 | Captain | CSORN | |
| 18.9.1782 | 21.9.1782 | Europe (64)
1765-1814 , Captain, and Commanding Officer ADM 6/22/517British 64 Gun 3rd Rate Ship of the Line 1778 Renamed "Europe" | ADM 6/22 |
| 5.5.1783 | 18.9.1783 | Janus (44)
1778-1810 , Captain, and Commanding Officer ADM 6/23/63British 44 Gun 5th Rate Ship of the Line 1788 Renamed "Dromedary" | BWAS-1714 |