William Smoult Playfair1 
He graduated from University of Edinburgh, Edinburgh, Midlothian, ScotlandG, in 1856 with a Doctor of Medicine (M.D.)1 He was Professor of Medicine between 1858 and 1860 at Calcutta Medical College, Calcutta, IndiaG.1 He was registered as a Member, Royal College of Physicians, London (M.R.C.P.) in 1863.1 He was appointed Fellow, Royal College of Physicians, London (F.R.C.P.) in 1870.1 He was obstretic physician between 1872 and 1898 at King’s College Hospital, London, EnglandG.1 He was Professor of Obstretic Medicine between 1872 and 1898 at King’s College London, London, EnglandG.1 He wrote the book Science and Practice of Midwifery, published 1876.1 He was awarded the honorary degree of Doctor of Law (LL.D.) by St. Andrews University, St. Andrews, Fife, ScotlandG, in 1885.1 He wrote the book System of Gynaecology, published 1896, with Sir T. C. Allbutt.1 He was awarded the honorary degree of Doctor of Law (LL.D.) by University of Edinburgh, Edinburgh, Midlothian, ScotlandG, in 1898.1
Child of William Smoult Playfair and Emily Kitson
- Sir Nigel Ross Playfair1 b. 1874, d. 1934

- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Emily Kitson1 
From 26 April 1864, her married name became Playfair.1
Child of Emily Kitson and William Smoult Playfair
- Sir Nigel Ross Playfair1 b. 1874, d. 1934
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
- [S522] Edmund Lodge, compiler, The Peerage and Baronetage of the British Empire, 80th edition (London, U.K.: Kelly’s Directories Ltd, 1911), page 149. Hereinafter cited as Peerage and Baronetage of the British Empire, 80th edition.
Sir Nigel Ross Playfair1 
He was educated at Harrow School, Harrow, London, EnglandG.1 He was educated at University College, Oxford University, Oxford, Oxfordshire, EnglandG.1 He was a professional actor on the stage between 1902 and 1918.1 In 1920 he revived the Beggar’s Opera.1 He was appointed Knight Bachelor in 1928.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Ann Playfair1 
Her married name became Hickey.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Captain unknown Hickey1
He had a daughter.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Jessie Macdonald Playfair1
From April 1840, her married name became Weston.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Colonel J. S. H. Weston1
He lived at West Horsley Place, Surrey, EnglandG.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Agnes Playfair1 
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
Margaret Eliza Oakes1 
From 28 July 1846, her married name became Playfair.1
Children of Margaret Eliza Oakes and Lyon Playfair, 1st Baron Playfair
- Hon. Jessie Anne Playfair1 b. 8 Jul 1847, d. 24 May 1927
- Brig.-Gen. George James Playfair, 2nd Baron Playfair+1 b. 31 Mar 1849, d. 26 Dec 1939
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
James Oakes1
Child of James Oakes
- Margaret Eliza Oakes+1 d. 13 Aug 1855
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 219. Hereinafter cited as The New Extinct Peerage.
