| # | Last Name | First Name | Initials | Rank | Regiment | Locality | Date of Death |
|---|---|---|---|---|---|---|---|
| 15198 | Marriott | Cecil Frederick | C F | Corporal | Royal Engineers | Pas de Calais | 1915-10-03 |
| 15210 | Marsh | Herbert Charles | H C | Private | South African Infantry | Somme | 1916-07-18 |
| 15216 | Marsh | Walter Stephen | W S | Lance Corporal | South African Infantry | Somme | 1918-10-08 |
| 15217 | Marsh | Zacheus Stanley | Z S | Second Lieutenant | Royal Flying Corps | Nord | 1917-10-10 |
| 15219 | Marshall | A T | Private | South African Infantry | Somme | 1916-07-03 | |
| 15226 | Marshall | Henry Bernie | H B | Private | South African Infantry | Somme | 1918-03-24 |
| 15230 | Marshall | Robert | R | Private | South African Infantry | Somme | 1916-07-18 |
| 15234 | Marshall | William | W | Private | South African Infantry | Somme | 1917-12-25 |
| 15236 | Marshall | William James | W J | Sergeant | South African Infantry | Somme | 1918-03-22 |
| 11428 | Martin | Algernon | A | Second Lieutenant | Royal Field Artillery | Aisne | 1918-07-30 |
| 15246 | Martin | Alexander | A | Lance Corporal | South African Infantry | Somme | 1916-07-06 |
| 15247 | Martin | Alfred | A | Second Lieutenant | Queen's Own (Royal West Kent Regiment) | Somme | 1916-09-03 |
| 15255 | Martin | Cecil Hampson | C H | Captain | East Lancashire Regiment | Pas de Calais | 1916-10-02 |
| 15259 | Martin | Easton | E | Private | South African Infantry | Pas de Calais | 1917-04-12 |
| 15263 | Martin | Frank | F | Private | South African Infantry | Somme | 1916-07-08 |
| 15272 | Martin | Herbert | H | Drummer | Northumberland Fusiliers | Somme | 1918-07-30 |
| 15274 | Martin | Ivor Llewellyn | I L | Private | South African Infantry | Somme | 1916-07-18 |
| 15276 | Martin | John | J | Private | South African Infantry | Pas de Calais | 1917-01-03 |
| 15278 | Martin | John | J | Driver | Cape Auxiliary Horse Transport | Pas de Calais | 1919-02-28 |
| 15290 | Martin | Percival Thomas | P T | Private | Duke of Cornwall's Light Infantry | Somme | 1916-07-23 |
| 15293 | Martin | Robert Douglas | R D | Second Lieutenant | Wiltshire Regiment | Somme | 1916-08-26 |
| 15298 | Martin | Stephanus | S | Driver | Cape Auxiliary Horse Transport | Pas de Calais | 1918-12-23 |
| 15299 | Martin | Thomas | T | Private | South African Infantry | Somme | 1918-03-22 |
| 15300 | Martin | William | W | Private | South African Infantry | Somme | 1916-07-18 |
| 18277 | Maruti | Joseph | J | Private | South African Native Labour Corps | Pas de Calais | 1917-01-16 |
| 15320 | Marvin | Edward William | E W | Private | South African Infantry | Somme | 1918-03-24 |
| 15321 | Marvin | Robert | R | Corporal | Royal Fusiliers | Nord | 1914-11-17 |
| 15332 | Masara | Breakfast | B | Private | South African Native Labour Corps | Seine-Maritime | 1918-01-11 |
| 15399 | Mashapa | Kleinbooi | K | Private | South African Native Labour Corps | Seine-Maritime | 1917-07-18 |
| 15364 | Mashigo | Jan Maneki | J M | Private | South African Native Labour Corps | Oise | 1917-09-13 |
| 15365 | Mashilo | Jan | J | Private | South African Native Labour Corps | Seine-Maritime | 1918-01-17 |
| 15368 | Mashirane | Klaas | K | Private | South African Native Labour Corps | Seine-Maritime | 1918-02-22 |
| 15373 | Mashobela | Jankie | J | Private | South African Native Labour Corps | Seine-Maritime | 1917-06-25 |
| 15378 | Masia | Jim Nyati | J N | Private | South African Native Labour Corps | Oise | 1917-03-13 |
| 15409 | Mason | Cyril Christopher | C C | Sergeant | South African Heavy Artillery | Somme | 1917-01-26 |
| 15410 | Mason | Charles Frederick | C F | Private | South African Infantry | Somme | 1916-07-09 |
| 15411 | Mason | Eric Wier | E W | Lieutenant | South African Heavy Artillery | Pas de Calais | 1917-08-12 |
| 15412 | Mason | Frank | F | Private | Royal Scots Fusiliers | Pas de Calais | 1915-03-25 |
| 15415 | Mason | Lancelot William Hart | L W H | Second Lieutenant | West Yorkshire Regiment (Prince of Wales's Own) | Pas de Calais | 1917-04-14 |
| 15417 | Mason | Overton Trollope | O T | Second Lieutenant | London Regiment (Queen Victoria's Rifles) | Somme | 1916-07-01 |
| 15418 | Mason | S | Private | South African Infantry | Somme | 1916-07-03 | |
| 15425 | Massey | Thomas Haisman | T H | Private | South African Infantry | Pas de Calais | 1916-10-12 |
| 15429 | Masson | Bruce | B | Private | South African Infantry | Somme | 1916-10-12 |
| 15432 | Masson | Wallace | W | Private | South African Infantry | Pas de Calais | 1917-04-12 |
| 40041 | Master | George Gilbert Onslow | G G O | Lieutenant | Gloucestershire Regiment | Somme | 1916-07-25 |
| 15444 | Masunhlane | Samuel | S | Private | South African Native Labour Corps | Seine-Maritime | 1918-05-09 |
| 15447 | Masuza | Jim | J | Private | South African Native Labour Corps | Pas de Calais | 1917-02-13 |
| 15474 | Matenje | Frans | F | Private | South African Native Labour Corps | Seine-Maritime | 1917-08-09 |
| 15492 | Mather | Ernest Sherwood | E S | Private | South African Infantry | Somme | 1916-07-09 |
| 15493 | Mather | George | G | Second Lieutenant | London Regiment (Cyclists) | Somme | 1916-10-04 |