John T. Clark
John T. Clark was an American civil engineer and politician from New York.
Hjalmar Gullberg
Hjalmar Gullberg( 30 May 1898 – 19 July 1961) was a Swedish writer, poet and translator of Greek drama into Swedish.
Robert M. Moody
Robert Manning Moody was bishop of the Episcopal Diocese of Oklahoma from 1989 to 2007.
He was ordained to the diaconate on June 21, 1966, to the priesthood on May 29, 1967, and consecrated to the episcopate on February 6, 1988.
Martin Schenck
Martin Schenck (January 24, 1848 – September 17, 1918) was an American civil engineer and politician from New York.
He was New York State Engineer and Surveyor from 1892 to 1893.
Robert Manning (politician)
Robert A. Manning( June 30, 1927 – August 24, 2006) was a member of the Ohio House of Representatives.
Robert Manning (engineer)
Robert Manning( 22 October
1816 – 9 December 1897) was an Irish hydraulic engineer best known for creation of the Manning formula.
Manning was born in Normandy, France, the son of a soldier who had fought the previous year at the Battle of Waterloo.
In 1826 he moved to Waterford, Ireland and in time worked as an accountant.
In 1846, during the year of the great famine, Manning was recruited into the Arterial Drainage Division of the Irish Office of Public Works.
After working as a draughtsman for a while, he was appointed an assistant engineer to Samuel Roberts later that year.
In 1848, he became district engineer, a position he held until 1855.
As a district engineer, he read Traité d' Hydraulique by d'Aubisson des Voissons, after which he developed a great interest in hydraulics.
From 1855 to 1869, Manning was employed by the Marquis of Downshire, while he supervised the construction of the Dundrum Bay Harbour in Ireland and designed a water supply system for Belfast.
After the Marquis ’ death in 1869, Manning returned to the Irish Office of Public Works as assistant to the chief engineer.
He became chief engineer himself in 1874, a position he held it until his retirement in 1891.
In 1866 he was awarded the Telford Medal by the Institution of Civil Engineers for his paper On… the flow of water off the ground in the Woodburn District near Carrickfergus.
He died at his Dublin home on 9 December 1897 and was buried at Mount Jerome Cemetery.
He had married his second cousin Susanna Gibson in 1848, by whom he had seven surviving children, one of whom, William Manning, was also an engineer.
His second daughter was the painter Mary Ruth Manning( 1853- 1930).
Nick Arvin
Nick Arvin is an American engineer and writer.
Robert Manning (priest)
Robert Manning( 1655 in Amsterdam – 4 March 1731 in Ingatestone Hall) was an English Roman Catholic priest and controversialist.
Robert D. Manning
Robert D. Manning( born 1957) is an American financial expert in consumer credit and financial services.
Up until 2008, Manning was a professor of finance at Rochester Institute of Technology's E. Philip Saunders College of Business.
Sverre Farstad
Sverre Farstad (8 February 1920 – 27 March 1978) was a Norwegian speed skater representing "Sportsklubben Falken", Trondheim, as part of the Falken Trio also including Henry Wahl and Hjalmar Andersen.
Farstad won one Olympic gold medal and one European Championship in his three-year international career.

Question: Are both Robert Manning (Engineer) and Hjalmar Gullberg from the same country?
Answer: no