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| Date from | Date to | Event | Source |
|---|---|---|---|
| 29.7.1738 | Succeeded as 6th Lord Banff | PEER | |
| 14.6.1739 | Lieutenant | ADM 6/15 | |
| 14.6.1739 | 15.11.1739 | Pearl (40)
1726-1744 , Third Lt. & Lt. at Arms ADM 6/15/187British 40 Gun 5th Rate Ship of the Line | ADM 6/15 |
| 16.11.1739 | 3.7.1740 | Southsea Castle (40)
1724-1744 , Second Lieutenant ADM 6/15/236British 40 Gun 5th Rate Ship | ADM 6/15 |
| 19.2.1740/41 | Captain | ADM 6/15 | |
| 19.2.1740/41 | 11.7.1745 | Hastings (44)
1741-1763 , Captain, and Commanding Officer ADM 6/15/382British 44 Gun 5th Rate Ship | BWAS-1714 |
| 12.7.1745 | 18.3.1745/46 | Tilbury (58)
1745-1757 , Captain, and Commanding Officer ADM 6/16/508British 58 Gun 4th Rate Ship of the Line | ADM 6/16 |