| Blathwayt | J | | | 1st Battalion
Source: QSA and KSA medal rolls | (Princess of Wales's Own) Yorkshire Regiment |
| Blathwayt | W | | | 3rd battalion
Source: QSA and KSA medal rolls | Grenadier Guards |
| Blatt | J | | | Source: WO100/231 | City Imperial Volunteers |
| Blatt | J A | | | Source: WO100/281 | George TG |
| Blatt | James Alexander | 19 | | Occupation: Telegraphist. Next of kin: Father. Address: Malmesbury .
Source: Attestation paper in WO126 | Town Guard and District Mounted Troops |
| Blatter | C | | Trooper | Frontier Wars. SAGS (1) 1879 | Natal Carbineers |
| Blaud | J | | | 1st Battalion
Source: QSA and KSA medal rolls | South Staffordshire Regiment |
| Blaudy | Gueth Swinnerton | 8451 | Lance Corporal | Source: QSA Medal Rolls | 19th Company, 6th Btn, IY |
| Blauw | P | 458 | Trooper | Severely wounded. Keimoes, 25 October 1901
Source: South African Field Force Casualty Roll | Border Scouts |
| Blauw | Piet | | | Source: Attestation paper in WO126 | Border Scouts |
| Blaver | F | | | 1st Battalion
Source: QSA and KSA medal rolls | Durham Light Infantry |
| Blaxall | Gus | 438 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| Blaxell | J B | 17784 | Driver | QSA (4) CC OFS Tr SA01
Source: WO100/146 | Elswick Artillery Volunteers |
| Blaxill | F | | | 3rd battalion
Source: QSA and KSA medal rolls | Grenadier Guards |
| Blay | C W | | | 1st Battalion
Source: QSA and KSA medal rolls | Devonshire Regiment |
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