Mary Julia Child-Villiers was born 26 May 1877 to Victor Albert George Child-Villiers, 7th Earl of Jersey (1845-1915) and Margaret Elizabeth Leigh (1849-1945) and died 21 November 1933 of unspecified causes. She married Thomas Pakenham, 5th Earl of Longford (1864-1915) 8 November 1899 in St. George's Church, St. George Street, St George Hanover Square, Greater London, England, United Kingdom.
|Offspring of Mary Julia Child-Villiers and Thomas Pakenham, 5th Earl of Longford (1864-1915)|
|Edward Arthur Henry Pakenham, 6th Earl of Longford (1902-1961)||29 December 1902||4 February 1961||Christine Patti Trew (1900-1980)|
|Margaret Pansy Felicia Pakenham (1904-1999)||18 May 1904 Marylebone, Greater London, England, United Kingdom||19 February 1999 London, Greater London, England, United Kingdom||Henry Taylor Lamb (1883-1960)|
|Francis Aungier Pakenham, 7th Earl of Longford (1905-2001)||5 December 1905||3 August 2001||Elizabeth Harman (1906-2002)|
|Mary Katherine Pakenham (1907-2010)|
|Violet Georgiana Pakenham (1912-2002)|
|Julia Agnes Cynthia Pakenham (1913-1956)|