Thomas Vesey, 3rd Viscount de Vesci of Abbey Leix, was born 21 September 1803 to John Vesey, 2nd Viscount de Vesci (1771-1855) and Frances Letitia Brownlow (1770-1840) and died 23 December 1875 of unspecified causes. He married Emma Herbert (1819-1884) 19 September 1839 .
|Offspring of Thomas Vesey, 3rd Viscount de Vesci of Abbey Leix and Emma Herbert (1819-1884)|
|Frances Isabella Catherine Vesey (1840-1915)|
|Georgiana Mary Vesey (1842-1923)|
|John Robert William Vesey, 4th Viscount de Vesci (1844-1903)|
|Beatrice Charlotte Elizabeth Vesey (1845-1876)|
|Eustace Vesey (1851-1886)||31 January 1851||18 November 1886||Constance Mary Lawley (1854-1951)|