Thomas Charles Morgan (1780-1843), later Sir Thomas, was the eldest son of John Morgan of Bloomsbury, London. He received his M.D. in 1809 from Peterhouse College, Cambridge. Morgan was a Whig, advocating Catholic emancipation and other liberal ideals. His later writings, Sketches of the Philosophy of Life (1818) and Sketches of the Philosophy of Morals (1822), were widely criticized for their materialism.