Eero Böök
Eero Einar Böök (9 February 1910 – 7 January 1990) was a Finnish chess player and engineer.
Isaac Boleslavsky
Isaac Yefremovich Boleslavsky (June 9, 1919 – February 15, 1977) was a Soviet chess player and writer.
Alejandro Maccioni Seisdedos
Alejandro Maccioni Seisdedos( 21 February 1919 — 5 May 2014) was a Chilean chess player and pediatrician.
Alix Joffroy
Alix Joffroy( 16 December 1844, in Stainville – 24 November 1908) was a French neurologist and psychiatrist remembered for describing Joffroy's sign.
He studied in Paris, earning his doctorate in 1873, becoming médecin des hôpitaux in 1879 and agrégé in 1880.
He worked at the Pitié- Salpêtrière Hospital from 1885 and succeeded Benjamin Ball as professor of clinical psychiatry in 1893.
Jean- Martin Charcot encouraged him to study neurology, and together they demonstrated atrophy of anterior horn cells in the spinal cord in poliomyelitis in 1869.
Alexey Sokolsky
Alexey Pavlovich Sokolsky (3 November 1908 – 27 December 1969) was a Ukrainian-Belarusian chess player of International Master strength in chess, a noted correspondence chess player, and an opening theoretician.
Sieghart Dittmann
Sieghart Dittmann( born 3 July 1934) is a German chess player and epidemiologist.
Fenil Shah
Fenil Shah( Born 20 April 1995) is an Indian chess player, who holds the Fide Title of International Master( IM).
He was the youngest rated chess player in 2002 and also the youngest chess player to represent Indian Team.
John Purdy (chess player)
John Purdy( 25 September 193527 August 2011) was an Australian chess player and Family Court judge.
Tim Harding (chess player)
Timothy David Harding( born 6 May 1948 in London) is a chess player and author with particular expertise in correspondence chess.
He published a correspondence chess magazine" Chess Mail" from 1996 to 2006 and authored" The Kibitzer", a ChessCafe.com column from 1996 until 2015.
In 2002, he was awarded the title Senior International Master of Correspondence Chess by the International Correspondence Chess Federation.
Harding has lived in Dublin since 1976, writing a weekly column for The Sunday Press from then until 1995.
In 2009, Harding received a PhD degree in history from University of Dublin, with his thesis on correspondence chess in Britain and Ireland, 1824 – 1914.
He is credited with coining the name Frankenstein – Dracula Variation in his 1975 Vienna Game book.
Nikolay Noritsyn
Nikolay Noritsyn is a Canadian chess player and coach.
He holds the title of International Master.

Question: Are both Tim Harding (Chess Player) and Alix Joffroy from the same country?
Answer: no