[1][4] His younger brother Admiral Theophilus Jones (1760–1835) was an officer in the British Royal Navy.
[1][6] Anthony Trollope's first published novel was written while he was staying in Drumsna in 1843, inspired by the ruins of Headfort.
[6][7] Trollope wrote in his diary: "While I was still among the ruined walls and decayed beams I fabricated the plot of The Macdermots of Ballycloran".
[8] The Joneses traced their ancestry to Bryan Jones (died 1681), a Welshman who had been granted lands in Ireland by King James VI and I in 1622.
[2][5] Jones was Sheriff of Leitrim in 1795–6,[9] an office which was held by members of his family over ten times on the 17th and 18th centuries.