Arthur Robert Onslow1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Sophia Onslow1
Her married name became Day.1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Neville Day1 
He lived at St. Neots, Huntingdonshire, England.1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Emma Onslow1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Louisa Onslow1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Amelia Onslow1
Her married name became Chamberlayne.1
Children of Amelia Onslow and Thomas Chamberlayne
- Francesca Maria Chamberlayne+ d. 30 Dec 1877
- Denzil Thomas Chamberlayne d. b 1877
- Tankerville Chamberlayne+
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Henry Lethbridge Kingsford-Lethbridge1
He was given the name of Henry Lethbridge Kingsford at birth.1
Child of Henry Lethbridge Kingsford-Lethbridge
- Joan Mary Kingsford-Lethbridge+1 b. 1903, d. 1981
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Maria Onslow1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Selina Onslow1
Her married name became Bourke.1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.
Thomas Bourke1
He lived at Holywell House, Hampshire, England.1
- [S98] Sir Bernard Burke, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 5th edition, (London, England: Burke’s Peerage Ltd, 1875), page 1022. Hereinafter cited as Burke’s Landed Gentry, 5th ed.