| Ref ID | Name | Initials | Nationality | Rank | Regiment/Service | Unit Text | Age | Date of Death | Service No | Additional information | Casualty Type | Grave/Memorial Reference | Cemetery |
| 0265 & R18 | PENNEFATHER, CHARLES LEWIS | C L | United Kingdom | Captain | Rifle Brigade | 2nd Bn. | 22 | 14/06/1916 | Son of Maj. and Mrs. L. M. Pennefather, of The Green Court, New Romney, Kent. Gazetted 15th Aug., 1914. Overseas Nov., 1914. Wounded at Fromelles May, 1915. Gazetted Capt. 14th Jan.1916. |
Commonwealth War Dead | B. 35. | AVELUY COMMUNAL CEMETERY EXTENSION | |
| A06 | PENNEFATHER, OLIVER FRANK | O F | New Zealand | Rifleman | New Zealand Rifle Brigade | 2nd Bn. 3rd | 21 | 10/07/1916 | 24/1461 | Son of Oliver Bateman Pennefather and Francis Annie Pennefather, of Denlair, Fordell, Wanganui, New Zealand. | Commonwealth War Dead | II. E. 16. | RATION FARM MILITARY CEMETERY, LA CHAPELLE-DARMENTIERES |
| PENNEFATHER, THOMAS | T | Australian | Private | Australian Infantry, A.I.F. | 12th Bn. | 25 | 16/02/1917 | 3088 | Born at Williams River. Son of Thomas and Norah Pennefather, of 98, Raglan Rd., Perth, Western Australia. | Commonwealth War Dead | Hexham Road Cem. Mem. 7. | WARLENCOURT BRITISH CEMETERY | |
| 0261 | PENNYFATHER, ALFRED LEONARD | A L | United Kingdom | Private | Northamptonshire Regiment | "C" Coy. 5th Bn. | 25 | 18/07/1917 | 12194 | Son of Alfred and Charlotte Pennyfather. | Commonwealth War Dead | I. A. 2. | MONCHY BRITISH CEMETERY, MONCHY-LE-PREUX |
| 1106 & R79 | PENNEFATHER, THE REV. SOMERSET EDWARD | S E | United Kingdom | Chaplain 2nd Class (Prebendary) | Army Chaplains' Department | 69 | 29/08/1917 | D.D. Son of John Pennefather, K.C., of Merrion Square, Dublin; husband of the late Catherine Emily Pennefather. | Commonwealth War Dead | 56. 21 and 22. | KENSINGTON (HANWELL) CEMETERY | ||
| 0271 | PENNYFATHER | H E | United Kingdom | Private | Royal Welsh Fusiliers | 9th Bn. | 22 | 24/03/1918 | 27353 | Son of Mr. J. Pennyfather, of 80, Clacton Rd., St. James's St., Walthamstow, Essex. | Commonwealth War Dead | III. C. 6. | ONTARIO CEMETERY, SAINS-LES-MARQUION |
| R66 | PENNEFATHER, T. DE LA POLE | T d l P | South African | Private | South African Infantry | 4th Regt. | 19 | 13/11/1918 | 21784 | Son of H. and M. Pennefather, of Eshowe, Zululand, South Africa | Commonwealth War Dead | I. I. 3. | BROOKWOOD MILITARY CEMETERY |
| PENNEFATHER, ISOBEL VERONICA | I V | United Kingdom | Civilian | Civilian War Dead | 48 | 15/03/1945 | of Sembrong Estate, Layang Layang, Johore, Malaya. Daughter of the late Matthew and Isabel Clarke; wife of Edward Matthew Pennefather. Died at Muntok, Banka Island. | Civilian War Dead | SUMATRA |