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| Date from | Date to | Event | Source |
|---|---|---|---|
| 3.9.1760 | Lieutenant | CSORN | |
| 1.12.1778 | Commander | CSORN | |
| 1.12.1778 | 24.3.1779 | , Commander, and Commanding Officer ADM 6/21/506 Issued by John ByronBritish , North America
Naval Sailor Service 1746-1780 Confirmed 1.2.1779 | BWAS-1714 |
| 24.3.1779 | 15.6.1779 | Tobago (16)
1779-1783 , Commander, and Commanding Officer ADM 6/22/149British 16 Gun Unrated Sloop Issued by John ByronBritish , North America
Naval Sailor Service 1746-1780 Confirmed 6.7.1780 | BWAS-1714 |
| 15.6.1779 | Captain | CSORN | |
| 15.6.1779 | 30.5.1781 | Fame (74)
1759-1814 , Captain, and Commanding Officer ADM 6/22/46British 74 Gun 3rd Rate Ship of the Line 1801 Renamed "Guildford" Issued by John ByronBritish , North America
Naval Sailor Service 1746-1780 Confirmed 2.11.1779 | ADM 6/22 |
| 6.7.1779 | Battle of Grenada | ||
| 31.5.1781 | 20.3.1783 | , Captain, and Commanding Officer ADM 6/22/293 | BWAS-1714 |
| 17.2.1783 | Action of 1783-02-17 | ||
| 26.8.1796 | Will Probated, National Archives. PROB 11/1278/266 Will of John Butchart, late Captain of His Majesty's Navy of Newgate Aberbrothock , Forfar. | NA-ROA |