Tags: Engineer.
This article is about steam engineer Jonathan Hornblower (1717–1780). For his son Jonathan (1753–1815) see Jonathan Hornblower. For his son Jabez (1744–1814) see Jabez Carter Hornblower Jonathan Hornblower (1717 – 1780) was an English pioneer of steam power the son of Joseph Hornblower and brother of Josiah Hornblower two fellow steam pioneers.Jonathan was born in Staffordshire on 30 October 1717 the eldest of the four children of steam pioneer Joseph and Rebecca (née Haywood) Hornblower.