- [S19351] "Dorothy Savile, Viscountess Halifax", Wikipedia https://en.wikipedia.org/wiki/Dorothy_Savile,_Viscountess_Halifax. Hereinafter cited as "Dorothy Savile, Viscountess Halifax".
- [S19352] "William Savile, 2nd Marquess of Halifax", Wikipedia https://en.wikipedia.org/wiki/William_Savile,_2nd_Marquess_of_Halifax. Hereinafter cited as "William Savile, 2nd Marquess of Halifax".
- [S19353] "Dorothy Boyle, Countess of Burlington", Wikipedia https://en.wikipedia.org/wiki/Dorothy_Boyle,_Countess_of_Burlington. Hereinafter cited as "Dorothy Boyle, Countess of Burlington".
- [S19354] "Charlotte Cavendish, Marchioness of Hartington", Wikipedia https://en.wikipedia.org/wiki/Charlotte_Cavendish,_Marchioness_of_Hartington. Hereinafter cited as "Charlotte Cavendish, Marchioness of Hartington".
- [S19355] "William Cavendish, 5th Duke of Devonshire", Wikipedia https://en.wikipedia.org/wiki/William_Cavendish,_5th_Duke_of_Devonshire. Hereinafter cited as "William Cavendish, 5th Duke of Devonshire".
- [S19356] "Georgiana Cavendish, Duchess of Devonshire", Wikipedia https://en.wikipedia.org/wiki/Georgiana_Cavendish,_Duchess_of_Devonshire. Hereinafter cited as "Georgiana Cavendish, Duchess of Devonshire".
- [S19357] "Georgiana Howard, Countess of Carlisle", Wikipedia https://en.wikipedia.org/wiki/Georgiana_Howard,_Countess_of_Carlisle. Hereinafter cited as "Georgiana Howard, Countess of Carlisle".
- [S19358] "John Spencer, 1st Earl Spencer", Wikipedia https://en.wikipedia.org/wiki/John_Spencer,_1st_Earl_Spencer. Hereinafter cited as "John Spencer, 1st Earl Spencer".
- [S19359] "George Spencer, 2nd Earl Spencer", Wikipedia https://en.wikipedia.org/wiki/George_Spencer,_2nd_Earl_Spencer. Hereinafter cited as "George Spencer, 2nd Earl Spencer".
- [S19360] "Henrietta Ponsonby, Countess of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Henrietta_Ponsonby,_Countess_of_Bessborough. Hereinafter cited as "Henrietta Ponsonby, Countess of Bessborough".
- [S19361] "Frederick Ponsonby, 3rd Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Frederick_Ponsonby,_3rd_Earl_of_Bessborough. Hereinafter cited as "Frederick Ponsonby, 3rd Earl of Bessborough".
- [S19362] "Lady Caroline Lamb", Wikipedia https://en.wikipedia.org/wiki/Lady_Caroline_Lamb. Hereinafter cited as "Lady Caroline Lamb".
- [S19363] "Frederick Cavendish Ponsonby", Wikipedia https://en.wikipedia.org/wiki/Frederick_Cavendish_Ponsonby. Hereinafter cited as "Frederick Cavendish Ponsonby".
- [S19364] "William Lamb, 2nd Viscount Melbourne", Wikipedia https://en.wikipedia.org/wiki/William_Lamb,_2nd_Viscount_Melbourne. Hereinafter cited as "William Lamb, 2nd Viscount Melbourne".
- [S19365] "John Ponsonby, 4th Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/John_Ponsonby,_4th_Earl_of_Bessborough. Hereinafter cited as "John Ponsonby, 4th Earl of Bessborough".
- [S19366] "Spencer Ponsonby-Fane", Wikipedia https://en.wikipedia.org/wiki/Spencer_Ponsonby-Fane. Hereinafter cited as "Spencer Ponsonby-Fane".
- [S19367] "Walter Ponsonby, 7th Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Walter_Ponsonby,_7th_Earl_of_Bessborough. Hereinafter cited as "Walter Ponsonby, 7th Earl of Bessborough".
- [S19368] "Edward Ponsonby, 8th Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Edward_Ponsonby,_8th_Earl_of_Bessborough. Hereinafter cited as "Edward Ponsonby, 8th Earl of Bessborough".
- [S19369] "Arthur Ponsonby, 11th Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Arthur_Ponsonby,_11th_Earl_of_Bessborough. Hereinafter cited as "Arthur Ponsonby, 11th Earl of Bessborough".
- [S19370] "Roberte Ponsonby, Countess of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Roberte_Ponsonby,_Countess_of_Bessborough. Hereinafter cited as "Roberte Ponsonby, Countess of Bessborough".
- [S19371] "Vere Ponsonby, 9th Earl of Bessborough", Wikipedia https://en.wikipedia.org/wiki/Vere_Ponsonby,_9th_Earl_of_Bessborough. Hereinafter cited as "Vere Ponsonby, 9th Earl of Bessborough".
- [S19372] England, Select Births and Christenings, 1538-1975, transcription, Spencer Cecil Brabazon Ponsonby, 580910, 580911, 580912, (9 April 1824). Hereinafter cited as England, Select Births and Christenings, 1538-1975.
- [S19373] "John Ponsonby-Fane", Wikipedia https://en.wikipedia.org/wiki/John_Ponsonby-Fane. Hereinafter cited as "John Ponsonby-Fane".
- [S19374] "William Ponsonby, 1st Baron de Mauley", Wikipedia https://en.wikipedia.org/wiki/William_Ponsonby,_1st_Baron_de_Mauley. Hereinafter cited as "William Ponsonby, 1st Baron de Mauley".
- [S19375] "Ashley Ponsonby", Wikipedia https://en.wikipedia.org/wiki/Ashley_Ponsonby. Hereinafter cited as "Ashley Ponsonby".
- [S19376] "Charles Ponsonby, 2nd Baron de Mauley", Wikipedia https://en.wikipedia.org/wiki/Charles_Ponsonby,_2nd_Baron_de_Mauley. Hereinafter cited as "Charles Ponsonby, 2nd Baron de Mauley".
- [S19377] "Robert Spencer, 2nd Earl of Sunderland", Wikipedia https://en.wikipedia.org/wiki/Robert_Spencer,_2nd_Earl_of_Sunderland. Hereinafter cited as "Robert Spencer, 2nd Earl of Sunderland".
- [S19378] "Charles Spencer, 3rd Earl of Sunderland", Wikipedia https://en.wikipedia.org/wiki/Charles_Spencer,_3rd_Earl_of_Sunderland. Hereinafter cited as "Charles Spencer, 3rd Earl of Sunderland".
- [S19379] "Charles Spencer, 3rd Duke of Marlborough", Wikipedia https://en.wikipedia.org/wiki/Charles_Spencer,_3rd_Duke_of_Marlborough. Hereinafter cited as "Charles Spencer, 3rd Duke of Marlborough".
- [S19380] "Elizabeth Spencer, Duchess of Marlborough", Wikipedia https://en.wikipedia.org/wiki/Elizabeth_Spencer,_Duchess_of_Marlborough. Hereinafter cited as "Elizabeth Spencer, Duchess of Marlborough".
- [S19381] "Lady Diana Beauclerk", Wikipedia https://en.wikipedia.org/wiki/Lady_Diana_Beauclerk. Hereinafter cited as "Lady Diana Beauclerk".
- [S19382] "Lord Robert Spencer", Wikipedia https://en.wikipedia.org/wiki/Lord_Robert_Spencer. Hereinafter cited as "Lord Robert Spencer".
- [S19383] "Lord Charles Spencer", Wikipedia https://en.wikipedia.org/wiki/Lord_Charles_Spencer. Hereinafter cited as "Lord Charles Spencer".
- [S19384] "John Spencer (1767–1831)", Wikipedia https://en.wikipedia.org/wiki/John_Spencer_(1767%E2%80%931831). Hereinafter cited as "John Spencer (1767–1831)".
- [S19385] "George Spencer, 4th Duke of Marlborough", Wikipedia https://en.wikipedia.org/wiki/George_Spencer,_4th_Duke_of_Marlborough. Hereinafter cited as "George Spencer, 4th Duke of Marlborough".
- [S19386] "Caroline Spencer, Duchess of Marlborough", Wikipedia https://en.wikipedia.org/wiki/Caroline_Spencer,_Duchess_of_Marlborough. Hereinafter cited as "Caroline Spencer, Duchess of Marlborough".
- [S19387] "George Agar-Ellis, 1st Baron Dover", Wikipedia https://en.wikipedia.org/wiki/George_Agar-Ellis,_1st_Baron_Dover. Hereinafter cited as "George Agar-Ellis, 1st Baron Dover".
- [S19388] "Caroline Agar-Ellis, Viscountess Clifden", Wikipedia https://en.wikipedia.org/wiki/Caroline_Agar-Ellis,_Viscountess_Clifden. Hereinafter cited as "Caroline Agar-Ellis, Viscountess Clifden".
- [S19389] Obituaries with Anecdotes of Remarkable Persons, The Gentleman's Magazine and Historical Chronicle from July to December 1813, Volume LXXXIII, by Sylvanus Urban, Page 626. Hereinafter cited as The Gentleman's Magazine.
- [S19390] "Cropley Ashley-Cooper, 6th Earl of Shaftesbury", Wikipedia https://en.wikipedia.org/wiki/Cropley_Ashley-Cooper,_6th_Earl_of_Shaftesbury. Hereinafter cited as "Cropley Ashley-Cooper, 6th Earl of Shaftesbury".
- [S19391] "George Spencer-Churchill, 5th Duke of Marlborough", Wikipedia https://en.wikipedia.org/wiki/George_Spencer-Churchill,_5th_Duke_of_Marlborough. Hereinafter cited as "George Spencer-Churchill, 5th Duke of Marlborough".
- [S19392] "Susan Spencer-Churchill, Duchess of Marlborough", Wikipedia https://en.wikipedia.org/wiki/Susan_Spencer-Churchill,_Duchess_of_Marlborough. Hereinafter cited as "Susan Spencer-Churchill, Duchess of Marlborough".
- [S19393] "Anne Stewart, Countess of Galloway", Wikipedia https://en.wikipedia.org/wiki/Anne_Stewart,_Countess_of_Galloway. Hereinafter cited as "Anne Stewart, Countess of Galloway".
- [S19394] "James Dashwood", Wikipedia https://en.wikipedia.org/wiki/James_Dashwood. Hereinafter cited as "James Dashwood".
- [S19395] "Elizabeth Montagu, Duchess of Manchester", Wikipedia https://en.wikipedia.org/wiki/Elizabeth_Montagu,_Duchess_of_Manchester. Hereinafter cited as "Elizabeth Montagu, Duchess of Manchester".
- [S19396] "George Montagu, 4th Duke of Manchester", Wikipedia https://en.wikipedia.org/wiki/George_Montagu,_4th_Duke_of_Manchester. Hereinafter cited as "George Montagu, 4th Duke of Manchester".
- [S19397] "George Spencer-Churchill, 6th Duke of Marlborough", Wikipedia https://en.wikipedia.org/wiki/George_Spencer-Churchill,_6th_Duke_of_Marlborough. Hereinafter cited as "George Spencer-Churchill, 6th Duke of Marlborough".
- [S19398] "Jane Spencer-Churchill, Duchess of Marlborough (1798–1844)", Wikipedia https://en.wikipedia.org/wiki/Jane_Spencer-Churchill,_Duchess_of_Marlborough_(1798%E2%80%931844). Hereinafter cited as "Jane Spencer-Churchill, Duchess of Marlborough (1798–1844)".
- [S19399] "Lord Alan Spencer-Churchill", Wikipedia https://en.wikipedia.org/wiki/Lord_Alan_Spencer-Churchill. Hereinafter cited as "Lord Alan Spencer-Churchill".
- [S19400] "Lord Alfred Spencer-Churchill", Wikipedia https://en.wikipedia.org/wiki/Lord_Alfred_Spencer-Churchill. Hereinafter cited as "Lord Alfred Spencer-Churchill".