Elizabeth Jones married Lt.-Col. Charles Beauclerk, son of Lord William Beauclerk and Charlotte Werden.1 She died on 5 December 1768.1 Her married name became Beauclerk.1 Child of Elizabeth Jones and Lt.-Col. Charles Beauclerk George Beauclerk, 4th Duke of Saint Albans1 b. 5 Dec 1758, d. 10 Feb 17
Taken from the peerage.com  Elizabeth Jones1 F, #11645, d. 5 December 1768 Last Edited=16 Oct 2016 87 Citations [S37] BP2003 volume 3, page 3460. See link for full details for this source. Hereinafter cited as. [S37] Mosley, Charles, editor. Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes. Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003.
This may be her but further research is needed
Name: ... ... Birth Date: Birthplace: Age: Spouse's Name: Elizabeth Jones Spouse's Birth Date: Spouse's Birthplace: Spouse's Age: Event Date: 14 Sep 1736 Event Place: Westminster, Middlesex, England Indexing Project (Batch) Number: I01010-9 System Origin: England-EASy GS Film number: 814101 Reference ID: v 74 p 110
Citing this Record: "England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NJXS-VYJ : 10 February 2018), ... ... and Elizabeth Jones, 14 Sep 1736; citing Westminster, Middlesex, England, reference v 74 p 110, index based upon data collected by the Genealogical Society of Utah, Salt Lake City; FHL microfilm 814,101.
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