| Kerr | John | 1515 | Private | Source: QSA Medal Rolls | 17th Company, 6th Btn, IY |
| Kerr | John | 21702 | Trooper | Source: QSA Medal Rolls | 90th Company, 23rd Btn, IY |
| Kerr | John | | | 2nd Battalion
Source: QSA and KSA medal rolls | (Duke of Albany's Ross-shire Buffs) Seaforth Highl |
| Kerr | John | | | Source: QSA and KSA medal rolls | Western Province Mounted Rifles |
| Kerr | John | 1957 | Trooper | BSACM Matabeleland 1893 (0).
Source: BSACM rolls | Bechuanaland Border Police |
| Kerr | John | 3014 and 399 | Trooper | 1st Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Kerr | John | 278 | Private | Source: OZ-Boer database | Victoria, 4th Imperial Contingent |
| Kerr | John | | | 1st Battalion
Source: QSA and KSA rolls | Imperial Light Horse |
| Kerr | John | 6148 | Sapper | Attached 9th Company. 1st Service Section. Clasps Joh; CC and OFS issued 3 Mar 1902.
QSA (4) CC OFS Joh SA01
TNA ref 162/43; 162/47 | Royal Engineers, Volunteers, Lanark |
| Kerr | John Arthur | 906 | Private | Source: OZ-Boer database | Queensland, 1st Battalion Australian Commonwealth |
| Kerr | John George | | Lieutenant | Source: Nominal roll in WO127 | Imperial Light Infantry |
| Kerr | John Keith | 513 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| Kerr | John McRae | 2 | Sergeant | Source: OZ-Boer database | South Australia, 3rd Bushmen's Contingent |
| Kerr | John McRae | 2750 | Sergeant Major | Source: OZ-Boer database | South Australia, 2nd Battalion Australian Commonwe |
| Kerr | Joseph | | | Source: QSA and KSA medal rolls | 65th Battery, RFA |
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