The daughter of William Hazlitt (1737–1820) and elder sister of the critic; her journal was published in 1967.

CORRESPONDENCE OF Margaret Hazlitt [Peggy]:

Margaret Hazlitt to William Hazlitt, 28 July 1820 in Memoirs of William Hazlitt. With Portions of his Correspondence 2 vols (London: Richard Bentley, 1867)