| Lucas | T | | | 3rd Battalion
Source: QSA and KSA medal rolls | Essex Regiment |
| Lucas | T | | | 1st Battalion
Source: QSA and KSA medal rolls | West India Regiment |
| Lucas | T | | | 2nd Battalion
Source: QSA and KSA medal rolls | South Wales Borderers |
| Lucas | T | | | 1st Battalion
Source: QSA and KSA medal rolls | Oxfordshire Light Infantry |
| Lucas | T | | | 1st Battalion
Source: QSA and KSA medal rolls | East Lancashire Regiment |
| Lucas | T | | | Source: QSA and KSA medal rolls | 39th Battery, RFA |
| Lucas | T | | | 3rd Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Lucas | T F | | | Source: QSA and KSA medal rolls | New Zealand, 5th Contingent (Imperial Bushmen) |
| Lucas | T R | | Major | No 4 General Hospital. MID LG: 8 February 1901, page: 948. Source: General Buller. 30 March 1900. Re: Ladysmith
This page contains all the London Gazette pages for the Boer War | Royal Army Medical Corps |
| Lucas | T R | | Major | Registrar, No 14 General Hospital. MID LG: 8 February 1901, page: 969. Source: General Buller. 9 November 1900. Re: Lof C - Natal
This page contains all the London Gazette pages for the Boer War | Royal Army Medical Corps |
| Lucas | T R | | Lieutenant Colonel | MID LG: 10 September 1901, page: 5957. Source: Field Marshal Roberts. 4 September 1901. Re: General mentions
This page contains all the London Gazette pages for the Boer War | Royal Army Medical Corps |
| Lucas | T R | | Major | List of CB recipients. Various sources | Royal Army Medical Corps |
| Lucas | Thomas | 4636 | Saddler | Source: QSA Medal Rolls | 41st Company, 4th Btn, IY |
| Lucas | Thomas | 21525 | Private | Source: QSA Medal Rolls | 25th Company, 7th Btn, IY |
| Lucas | Thomas Anthony | 35112 | Lance Corporal | Source: QSA Medal Rolls | 23rd Company, 8th Btn, IY |
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