William Duncombe was the boyhood friend of Samuel Say and later of the poet William Hinchliffe. He worked in the Navy Office (1706-25) and was part-proprietor of the Whitehall Evening Post; in 1726 he married the sister of John Hughes, the editor of Spenser. Their child, John Duncombe was afterwards a member of Richardson's circle and a distinguished man of letters. The detailed biography of Duncombe in John Nichols's Anecdotes of the XVIII Century gives information about his scattered publications.
The carmen saeculare of Horace [trans. Duncombe]. 1721.
Athaliah [Racine, trans. Duncombe]. 1722.
Henry Needler, Works [ed. Duncombe]. 1724.
A letter to Mr. Law; occasion'd by reading his treatise on Christian perfection: with a copy of verses. 1728.
Remarks on Mr. Tindal's translation of Monsr. de Rapin Thoyras's History of England. In a letter to S.T. esq. 1728.
Lucius Junius Brutus: a tragedy. 1735.
John Hughes, Poems [ed. Duncombe]. 2 vols, 1735.
Jabez Hughes, Miscellanies [ed. Duncombe]. 1737.
The usefulness of dramatic interludes [Werenfels, trans. Duncombe] 1744.
Samuel Say, Works [ed. Duncombe]. 1745.
The complicated guilt of the late rebellion. Written by John Hughes, Esq. [preface by Duncombe]. 1745.
A sermon preach'd to the people at the Mercat-cross of Edinburgh, on the subject of the Union in 1706 [preface by Duncombe]. 1745.
Works of Horace, by several hands [ed. Duncombe]. 2 vols, 1757, 1767.
Seven sermons on public occasions. By the most Reverend Dr. Thomas Herring [ed. Duncombe]. 1763.
Letters from the late most reverend Dr. Thomas Herring, Lord Archbishop of Canterbury, to William Duncombe. 1777.