| Regimental number | 42461 |
| Occupation | Draughtsman |
| Next of kin | Father, T Begg, Bayfield, Anderson's Bay, Dunedin |
| Rank on embarkation | Private |
| Unit name | New Zealand Expeditionary Force, 23rd Reinforcements, Otago Infantry Regiment, D Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT Ruapehu on |
| Family/military connections | Brothers: 3/205 Andrew Muir BEGG; 3/206 Arama Thomas BEGG |
| Sources | Nominal Roll Vol. 3: Roll 57, p. 13 |