In 1841 Matthew Trewhella, aged 38, born in the county, farmer, and wife Hannah Trewhella, aged 37, born in the county, were living in Breja, Towednack, Cornwall. With them were children: Matthew (8), William (6), John (3).
  
  
In 1851 Matthew Trewhella, aged 48, born in Towednack, miner, and wife Hannah, aged 47, born in Towednack, were living in Gergia, Towednack. With them were children (born in Towednack): Matthew (18), miner, William (16), miner, John (13), miner, Martin (9), Catherine Ann (7), and Christopher (4) of St. Ives.
  In 1861 Matthew Trewhella, aged 58, born in Towednack, tin miner, and wife Joanna, aged 56, born in Towednack, were living in 10 Embla, Towednack. With them were children (born in Towednack): Matthew (28), tin miner, John (24), tin miner, Martin (19), tin miner, Catherine (17), tin miner.
  In 1871 Mathew Trewhella, aged 68, born in Cornwall, married, collier, and sons Martin (28) and Chrostopher (24), were lodging in Tynybeder, Ystradyfodwg, Glamorgan, Wales.