| Mason | Jas | | | Source: WO100/283 | King Williamstown TG |
| Mason | John | | Bearer | Joined 12 Dec 99
Source: Nominal roll in WO127 | Natal Volunteer Ambulance Corps |
| Mason | John | 40207 | Trooper | Source: QSA Medal Rolls | 129th Company, 28th Btn, IY |
| Mason | John | 44939 | Private | No known Company. Served in 30th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Mason | John | 42436 | Trooper | No known Company. Served in 34th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Mason | John | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Inniskilling Fusiliers |
| Mason | John | 8759 | Sergeant | 1st Volunteer Company, 2nd Battalion
Source: QSA roll | Lancashire Fusiliers |
| Mason | John | 2590 | Private | 4th RPR
Source: Nominal roll in WO127 | Railway Pioneer Regiment |
| Mason | John | 2590 | | Source: Attestation papers. See image on this site. | Railway Pioneer Regiment |
| Mason | John | 28959 | Private | Source: Nominal roll in WO127 | Rand Rifles |
| Mason | John Alfred | 1835 | Trooper | Served in 1st KFS. Joined Durban 27 Dec 01 Discharged 6 Jul 02 disbandment Johannesburg
Source: Nominal roll in WO127 | Kitchener's Fighting Scouts |
| Mason | John Alfred | | Trooper | Source: Nominal roll in WO127 | Rimington's Guides |
| Mason | John Arthur | 13052 | Trooper | Source: QSA Medal Rolls | 51st Company, 12th Btn, IY |
| Mason | John Edwin | 1458 | Trooper | Source: OZ-Boer database | New South Wales, 3rd Battalion Australian Commonwe |
| Mason | John F | | Private | QSA (3)
Source: List of QSAs with the clasp Defence of Kimberley | Kimberley TG |
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