| 1867: | 56th “Prescott” Battailon of Infantry │ |
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| 1867: | 56th “Grenville” Battailon of Infantry │ |
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| 1871: | 56th Grenville Battailon of Rifles │ |
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| 1871: | 56th Grenville Battailon “Lisgar Rifles” │ |
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| 1898: | │ │ |
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| 1900: | 56th Grenville Regiment “Lisgar Rifles” │ |
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| 1912: | 31st Battery, Canadian Field Artillery |
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| 1920: | 56th Battery, Canadian Field Artillery |
1st Battalion, [Non Permanent Active Militia] |
2nd Battalion, [Reserve] |
| │ | The Grenville Regiment (Lisgar Rifles) | ||
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| 1925: | 56th Field Battery, Canadian Artillery │ |
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| 1935: | 56th Field Battery, Royal Canadian Artillery │ |
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| 1936: | 56th (Grenville) Field Battery, (Howitzer), Royal Canadian Artillery │ |
disbanded | |
| 1937: | 56th (Grenville) Field Battery, Royal Canadian Artillery │ |
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| 1940: | 56th Reserve (Grenville) Field Battery, Royal Canadian Artillery │ |
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| 1946: | 56th Field Battery, Royal Canadian Artillery │ |
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| 1947: | 56th Field Battery (Self-propelled), Royal Canadian Artillery │ |
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| 1954: | merged into 45th Medium Battery, Royal Canadian Artillery |
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