Eleanor Pilgrim
Eleanor Pilgrim( born 15 February 1977) is a Welsh professional golfer and a member of the Ladies European Tour.
Mike Small (golfer)
Mike Small( born March 4, 1966) is an American professional golfer and college golf coach.
Ashley Prange
Ashley Prange( born November 24, 1981) is a professional golfer and winner of the reality television program.
Hannah Green (golfer)
Hannah Green( born 20 December 1996) is an Australian professional golfer and winner of the 2019 Women's PGA Championship.
Bill Porter (golfer)
Bill G. Porter (born September 18, 1959) is an American professional golfer.
Porter was born in Moses Lake, Washington.
He played one year of college golf at the University of Oregon before turning professional in 1980.
Porter worked as a club pro and played on mini-tours until earning his Ben Hogan Tour card (now Nationwide Tour) in the 1991 Q School.
He played on the Nationwide Tour and PGA Tour from 1992 to 1996.
On the Nationwide Tour (1992–94, 1996), he won once at the 1994 Nike Louisiana Open.
On the PGA Tour (1995), his best finish was T-11 at the Deposit Guaranty Golf Classic.
He also won several events in the Pacific Northwest.
Porter has been the head golf professional at The Links at Moses Pointe in Moses Lake since 2003.
Andrew Coltart
Andrew John Coltart( born 12 May 1970) is a Scottish professional golfer and TV commentator.
Retief Waltman
Retief Waltman( born 1938 – 39) is a former South African professional golfer and is a Christian missionary.
Jan Hajek (scientist)
Jan Hajek is a Czech scientist and mathematician, living in the Netherlands.
He participated in the creation of the TCP/ IP protocol.
He also created' Approver'" which was probably the first tool for the automated verification of concurrent systems".
Hajek is best known for his work Probabilistic causation indicated by relative risk, attributable risk and by formulas of I.J. Good, Kemeny, Popper, Sheps/ Cheng, Pearl and Google's Brin, for data mining, epidemiology, evidence- based medicine, economy, investments or Causal INSIGHTS INSIDE for data mining to fight data tsunami and confounding.
Harris English
Harris English( born July 23, 1989) is an American professional golfer and currently a member of the PGA Tour.
Dennis Tiziani
Dennis B. Tiziani is a retired professional golfer and golf coach.

Question: Are Bill Porter (Golfer) and Jan Hajek (Scientist) of the same nationality?
Answer: no