Cornelis Jacobsz Schout
Cornelis Jacobsz Schout (c.1570 – after 1621), was a Dutch Golden Age member of the Haarlem schutterij.
He was the brother of the judge Jan Jacobsz Schout and the notary Pieter Jacobsz Schout and became the father of the ensign Jacob Cornelisz Schout.
He was a lieutenant of the St. George militia in Haarlem from 1612-1615 and was captain 1618-1621.
He was portrayed by Frans Hals along with his son in "The Banquet of the Officers of the St George Militia Company in 1616".
Gaston Berghmans
Gaston Petrus Bernardina Berghmans( 11 March 1926 – 21 May 2016) was a Belgian actor and comedian.
Between 1972 and 1993 he and Leo Martin formed a comic duo called Gaston and Leo.
Peter Lang (guitarist)
Peter Lang( born January 6, 1948) is an acoustic guitarist who recorded for Takoma Records with John Fahey and Leo Kottke.
Jacob Cornelisz van Oostsanen
Jacob Cornelisz van Oostsanen( before 1470 – 1533) was a Northern Netherlandish designer of woodcuts and painter.
He was one of the first important artists working in Amsterdam, at a time when it was a flourishing provincial town.
Leo Graham (songwriter)
Leo Graham, Jr.( born 1941) is an American Chicago- based songwriter and producer who had a string of hits with Tyrone Davis.
He was nominated for Grammy Award for Best R&B Song at 23rd Annual Grammy Awards for" Shining Star"
Cornelis Jacobsz Schout
Cornelis Jacobsz Schout (c.1570 – after 1621), was a Dutch Golden Age member of the Haarlem schutterij.
He was the brother of the judge Jan Jacobsz Schout and the notary Pieter Jacobsz Schout and became the father of the ensign Jacob Cornelisz Schout.
He was a lieutenant of the St. George militia in Haarlem from 1612-1615 and was captain 1618-1621.
He was portrayed by Frans Hals along with his son in "The Banquet of the Officers of the St George Militia Company in 1616".
Leo Graham
Leo Graham is a Jamaican singer.
He first sang with The Bleechers, then after leaving the group recorded several solo singles in the 1970s including" Perilous Time, A Win Them" and" Not Giving Up" for Joe Gibbs, and songs including" Big Tongue Busters" for producer Lee" Scratch" Perry.
Graham's vocals on Perry's recordings have been described as" quaverybleating" and" distinctly rural".
Graham's first record with Perry was a song he had written criticizing Obeah religion called" Black Candle."
Jacob Cornelisz Schout
Jacob Cornelisz Schout (c.1600 – after 1627), was a Dutch Golden Age member of the Haarlem schutterij.
The Adoration of the Magi (Jacob van Oostsanen)
The Adoration of the Magi is a 1517 triptych by the Early Netherlandish painter Jacob Cornelisz. van Oostsanen in the collection of the Rijksmuseum.
Karel Sabina
Karel Sabina( pen names include Arian Želinský and Leo Blass)( 29 December 1813 – 8 November 1877) was a Czech writer and journalist.

Question: Did Jacob Cornelisz Schout and Leo Graham (Songwriter) share the same nationality?
Answer: no