J. L. B. Smith
James Leonard Brierley Smith, known always as" J. L. B. Smith",( 26 September 1897 – 8 January 1968), was a South African ichthyologist, organic chemist, and university professor.
He was the first to identify a taxidermied fish as a coelacanth, at the time thought long extinct.
Johnny Leonard
John James Leonard( 8 June 1903 – 3 May 1995) was a player and coach of Australian rules football in the West Australian Football League( WAFL) and the Victorian Football League( later renamed to Australian Football League) in the period 1922 to 1946.
He was born in England.
James Leonard Corning
James Leonard Corning( 1855 – 1923) was an American neurologist, mainly known for his early experiments on neuraxial blockade in New York City.
Richard T. Antoun
Richard" Dick" T. Antoun( March 31, 1932, in Worcester, Massachusetts – December 4, 2009, in Vestal, New York) was an American anthropologist who specialized in Islamic and Middle Eastern studies.
He was a Professor Emeritus at Binghamton University.
His work centered on religion and the social organization of tradition in Islamic law and ethics, among other things.
He was stabbed to death in his office at Binghamton University in December 2009; a Saudi graduate student pleaded guilty to killing him, and was sentenced to 15 years in prison.
James L. Farmer Sr.
James Leonard Farmer Sr.( June 12, 1886 – May 14, 1961), known as J. Leonard Farmer, was an American author, theologian, and educator.
He was a minister in the Methodist Episcopal Church, South and an academic in early religious history as well as theology.
Jimmi Accardi
James Leonard" Jimmi" Accardi is a musician, songwriter, and music producer.
James McIntire (politician)
James Leonard" Jim" McIntire( born April 9, 1953) is an American economist and politician, who served as the Washington State Treasurer from 2008 to 2017.
A Democrat, McIntire was first elected as Washington state Treasurer in 2008 and had previously served five terms in the Washington State House of Representatives, from 1998 to 2009.
Peter Klatzow
Peter James Leonard Klatzow is a South African composer and pianist.
He was the director of the College of Music and is an emeritus professor in composition at the University of Cape Town.
Jim McCashney
James Leonard McCashney( 30 December 1900 – 26 May 1967) was an Australian rules footballer who played with Hawthorn in the Victorian Football League( VFL).
James Leonard Pate
James Leonard Pate( 1935–2003) was former board chairman and chief executive officer of the Pennzoil- Quaker State Co. and assistant secretary of commerce and economic spokesman for U.S. President Gerald Ford.

Question: Did Richard T. Antoun and James Leonard Corning share the same nationality?
Answer: yes