Johann Heinrich Louis Krüger
Johann Heinrich Louis Krüger( 21 September 1857 – 1 June 1923) was a German mathematician and surveyor.
He became director of the Prussian geodetic institute in 1917 and wrote several books on geodesy, operational and theoretical.
In 1912 he presented his" Konforme Abbildung des Erdellipsoids in der Ebene", one of the works that led to the 1923 Gauss – Krüger coordinate system and projection.
Lavater brothers
The Lavater brothers were Johann Heinrich Lavater( baptised 21 February 1611–9 June 1691) and Johann Jacob Lavater( 1594 – 1636), both Swiss physicians and naturalists.
Johann Heinrich Richter
Johann Heinrich Richter( 1803 – 1845) was a German painter.
Johann Heinrich Troll
Johann Heinrich Troll( 1756–1824) was a Swiss painter.
Heinrich Louis d'Arrest
Heinrich Louis d' Arrest( 13 August 1822 – 14 June 1875) was a German astronomer, born in Berlin.
His name is sometimes given as Heinrich Ludwig d'Arrest.
Johann Heinrich Schönfeld
Johann Heinrich Schönfeld( 1609 – 1684) was German painter in the Baroque style.
Heinrich Hübschmann
Johann Heinrich Hübschmann( 1 July 1848 – 20 January 1908) was a German philologist.
Johann Heinrich Schulz
Johann Heinrich Schulz( 1739- 1823) was a German Lutheran pastor.
Johann Heinrich Abicht
Johann Heinrich Abicht( 4 May 1762 – 28 April 1816) was a German philosopher.
D'Arcy Coulson
John D' Arcy Coulson( February 17, 1908 – April 13, 1996) was a Canadian professional ice hockey defenceman who played one season in the National Hockey League for the Philadelphia Quakers.
Born in Sudbury, Ontario and raised in Ottawa, he first played for the Ottawa Shamrocks of the OCHL in 1927.
He played for the Quakers in the 1930 – 31 season, scoring no goals in the NHL but ranking third in the league in penalty minutes that season.
After leaving hockey, Coulson, whose father owned hotels in Sudbury, Ottawa and Hawkesbury and a golf club in Aylmer, Quebec, joined the family business.
The hotel in Sudbury, although no longer owned by the Coulson family, is still named the Coulson Hotel.

Question: Did D'Arcy Coulson and Johann Heinrich Louis Krüger share the same nationality?
Answer: no