Sir Thomas Joseph de Trafford, 1st Baronet, was a member of a prominent family of English Roman Catholics. He served as commander of the Manchester and Salford Yeomanry at the time of the Peterloo Massacre. He was born at Croston Hall near Chorley, Lancashire, on 22 March 1778, son of John Trafford and Elizabeth Tempest, and was christened Thomas Joseph Trafford.
- Position held
- baronet
- Citizenship
- Kingdom of Great Britain, United Kingdom of Great Britain and Ireland
- Born
- March 22, 1778
- Died
- November 10, 1852