Biography:
1. Thomas Harrison was a common Labourer who was paid 17/-d for work carried out by the Engineers' Department in the Manufactory between the 15th and 21st July 1809.
2. Supply 5/228 dated the 1st September 1810 recorded that Harrison was a Cooper who was paid 2/6 day, but that he was not allowed to watch.
3. In 1812 he was employed as a casual Bricklayer's Labourer in the Engineers' Department, earning 2/8d per day for a six-day week ( WO54/512 dated September 1812).
4. WO54/516 dated February 1816, confirmed that Thomas was employed as a casual Labourer earning 2/8d per day in the Engineers' Department, and recorded that was first employed by the Board on the 29 March 1806. In 1816, he was a widower from Enfield with no children.
