Jana Kubovčáková
Jana Kubovčáková is a retired Czechoslovak slalom canoeist of Slovak nationality who competed in the 1970s.
She won a bronze medal in the K1 team event at the 1975 ICF Canoe Slalom World Championships in Skopje.
William Henry Brown (aviator)
Lieutenant William Henry Brown was a Canadian World
War I flying ace credited with nine aerial victories.
Henry Brown (inventor)
Henry Brown was an African- American inventor, perhaps best known as the inventor of a type of paper storage box.
Henry Brown developed a type of compartmented storage box intended to keep sheets of carbon paper separate from each other, and patented his invention( number 352,036) on November 2, 1886.
Henry Brown (American clergyman)
Henry Brown( July 20, 1848 – 1931) was a Methodist missionary and minister in Washington state at the turn of the century, a prohibitionist, and an author of one book.
Born in Guernsey County, Ohio, Reverend Dr. Henry Brown was the presiding elder of the Spokane District of the Columbia River Conference for many years during the 1890s to the early 1900s.
Paul Brown (English footballer)
Paul Henry Brown( born 10 September 1984) is an English footballer who plays as a midfielder.
He currently plays for Workington.
Gordon Potter (canoeist)
Gordon F. Potter( November 26, 1906 – June 1971) was a Canadian canoeist who competed in the 1936 Summer Olympics.
In 1936 he and his partner Edward Deir finished tenth in the K-2 10000 m event.
Henry Brown Fuller
Henry Brown Fuller( 1867- 1934) was an American painter of classical and allegorical works.
Henry Brown (rugby union)
Henry Mackay Brown( 14 June 1910 – 1 June 1965) was a New Zealand rugby union player.
A wing, Brown represented King Country, Auckland, and Poverty Bay at a provincial level.
He was a member of the New Zealand national side, the All Blacks, on their 1935 – 36 tour of Britain, Ireland and Canada.
He played in eight matches on that tour, scoring five tries, but did not appear in any internationals.
Steve Rule
Stephen" Steve" Rule( born 5 June 1952) is an English- born former rugby union, and professional rugby league footballer who played in the 1970s and 1980s, and current rugby union coach.
He played representative level rugby union( RU) for English Universities Rugby Union and Cheshire Rugby Football Union, and at club level for Loughborough Students RUFC and Sale, as a fly- half, i.e. number 10, and representative level rugby league( RL) for Wales, and at club level for Salford and St. Helens, as a, i.e. number 1, and coached representative level rugby union( RU) for Cheshire Rugby Football Union, and at club level for Sale, Lymm RFC, New Brighton and Macclesfield RUFC.
Sideris Tasiadis
Sideris Tasiadis( born 7 May 1990) is a German slalom canoeist of Greek descent who has competed at the international level since 2005.
He lived in Thrace, Greece for 10 years during his childhood.

Question: Were Henry Brown (Rugby Union) and Gordon Potter (Canoeist) of the same nationality?
Answer: no