Karl Wilhelm (conductor)
Karl Wilhelm, also Carl Wilhelm( 5 September 1815, Schmalkalden – 26 August 1873, Schmalkalden) was a German choral director.
He is best known as the composer of the music of the song “ Die Wacht am Rhein. ”
Alonso Mudarra
Alonso Mudarra( c. 1510 – April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.
He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.
Alexandru Cristea
Alexandru Cristea( 1890 – 1942) was the composer of the music for" Limba Noastră", current national anthem of Moldova.
Egbert Van Alstyne
Egbert Anson Van Alstyne (March 4, 1878 – July 9, 1951) was an American songwriter and pianist.
Van Alstyne was the composer of a number of popular and ragtime tunes of the early 20th century.
So Long, Mother
"So Long, Mother" is a World War I era song released in 1917.
Raymond B. Egan and Gus Kahn wrote the lyrics.
Egbert Van Alstyne composed the music.
The song was published by Jerome H. Remick & Co. of Detroit, Michigan.
On the cover is a soldier and mother in an embrace.
To the left is an inset photo of singer Al Jolson.
It was written for both voice and piano.
The song is told from the soldier's point of view as he comforts his heavyhearted mother before he leaves for war.
The chorus is as follows:
The sheet music can be found at Pritzker Military Museum & Library.
Petrus de Domarto
Petrus de Domarto( fl. c. 1445– 1455) was a Franco- Flemish composer of the Renaissance.
He was a contemporary and probable acquaintance of Ockeghem, and was the composer of at least one of the first unified mass cycles to be written in continental Europe.
Michelangelo Faggioli
Michelangelo Faggioli( 1666–1733) was an Italian lawyer and celebrated amateur composer of humorous cantatas in Neapolitan dialect.
A founder of a new genre of Neapolitan comedy, he was the composer of the opera buffa" La Cilla" in 1706.
Pydimarri Venkata Subba Rao
Pydimarri Venkata Subba Rao( June 10, 1916 – 1988) was a Telugu author who is best remembered as the composer of the National Pledge of India.
Alexander Courage
Alexander Mair" Sandy" Courage Jr.( December 10, 1919
May 15, 2008) was an American orchestrator, arranger, and composer of music, primarily for television and film.
He is best known as the composer of the theme music for the original" Star Trek" series.
Walter Robinson (composer)
Walter Robinson is an African American composer of the late 20th century.
He is most notable for his 1977 song" Harriet Tubman", which has been recorded by folk musicians such as Holly Near, John McCutcheon, and others.
He is also the composer of several operas.

Question: Which country the composer of song So Long, Mother is from?
Answer: American