Black Watch
| Dates | Locations | Higher Formation/Remarks |
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| . | 4th/5th (Dundee and Angus) Battalion, The Black Watch (Royal Highland Regiment) | . |
| 1947.01.01 | reconstituted in T.A. with HQ at Dundee, and concurrently amalgamated with duplicate 5th Battalion | . |
| . | A Company at Dundee | . |
| . | B Company at Dundee | . |
| . | C Company at Arbroath | . |
| . | D Company at Brechin | . |
| 1967.04.01 | disbanded and concurrently amalgamated with 6th/7th Battalion, to form TAVR elements of The Black Watch (Royal Highland Regiment) | . |
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| . | 6th/7th Battalion, The Black Watch (Royal Highland Regiment) | . |
| 1947.01.01 | Reconstituted in T.A. with HQ at Perth, and concurrently amalgamated with duplicate 7th Battalion | . |
| . | A Company at Perth | . |
| . | B Company at Crieff | . |
| . | C Company at Dumfermline | . |
| . | D Company at Leven | . |
| 1967.04.01 | disbanded and concurrently amalgamated with 4th/5th Battalion, to form TAVR elements of The Black Watch (Royal Highland Regiment) | . |
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| . | 3rd (Volunteer) Battalion, The Black Watch (Royal Highland Regiment) | . |
| 1967.04.01 | T.A. elements of The Black Watch disbanded and concurrently reconstituted as: | . |
| . | HQ Company (Black Watch), 51st Highland Volunteers formed in TAVR II at Perth, successor to 6th/7th Bn The Black Watch | . |
| . | A Company (Black Watch), 51st Highland Volunteers formed in TAVR II at Dundee, successor to 4th/5th Bn The Black Watch | . |
| . | 3rd (Territorial) Battalion, The Black Watch (Royal Highland Regiment) formed in TAVR III with HQ at Dundee: | . |
| . | A Company at Arbroath, successor to 4th/5th Bn The Black Watch | . |
| . | B Company at Kirkcaldy, successor to 6th/7th Bn The Black Watch | . |
| . | C Company at Dumfermline, successor to 6th/7th Bn The Black Watch | . |
| 1969.04.01 | TAVR III element reduced to cadre at Dundee, sponsored by 51st Highland Volunteers | . |
| 1971.04.01 | reorganised as three companies: | . |
| . | HQ Company (Black Watch), 1st Battalion, 51st Highland Volunteers at Perth | . |
| . | A Company (Black Watch), 1st Battalion, 51st Highland Volunteers at Dundee | . |
| . | B Company (Black Watch), 1st Battalion, 51st Highland Volunteers at Kirkcaldy, reconstituted from cadre and Kirkcaldy pln HQ Coy | . |
| 1992-1993 | 1st Bn, 51st Highland Volunteers reorganised into three rifle company establishment and company subtitles omitted, effectively making battalion an all Black Watch unit: | . |
| . | HQ Company at Perth | . |
| . | A Company at Dundee | . |
| . | B Company at Forfar, raised July 1992 | . |
| . | K Company at Kirkcaldy, redesignation of former B Coy | . |
| 1994.12.31 | Renamed 3rd (Volunteer) Battalion, The Black Watch (Royal Highland Regiment) | . |
| . | HQ at Queen's Barracks, Perth, redesignation of 1st Bn, 51st Highland Volunteers | . |
| . | HQ Company at Queen's Barracks, Perth | . |
| . | A Company at Dundee | . |
| . | B Company at Forfar | . |
| . | K Company at Kirkcaldy | . |
| 1995.04.01 | Converted into Fire Support Battalion: B Coy at Forfar became Milan Pln under A Company; K Coy formed Milan Pln at Perth | . |
| 1999.07.01 | A (Black Watch) Company, 51st Highland RegimentÃÂ at Dundee including Rifle and Mortar Pln; ATk Pln at Forfar and Rifle Pln at Kirkcaldy, amalgamation of A Coy and K Coy; regiment formed by amalgamation with 3rd (V) Bn, The Highlanders, and 7th/8th (V) Bn, The Argyll and Sutherland Highlanders), Black Watch also forming its HQ | . |
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