Question: What was Jack Buck's younger brother's job?

Context paragraphs:
Rogers baronets: The Rogers Baronetcy, of Wisdome in the County of Devon, was a title in the Baronetage of England.  It was created in 1699 for John Rogers, a merchant and Member of Parliament for Plymouth.  His son, the second Baronet, and grandson, the third Baronet, also represented Plymouth in Parliament.  The latter was childless and was succeeded by his younger brother, the fourth Baron.  He was a Captain in the Royal Navy.  His son, the fifth Baronet, sat as Member of Parliament for Plymouth.  He was succeeded by his eldest son, the sixth Baronet.  He sat as Member of Parliament for Callington and was also a composer.  He was unmarried and was succeeded by his younger brother, the seventh Baronet.  The latter was succeeded by his eldest son, the eighth Baronet.  He was a prominent civil servant and notably served as Permanent Under-Secretary of State for the Colonies from 1860 to 1871.  In 1871 he was elevated to the Peerage of the United Kingdom as Baron Blachford, of Wisdome and of Blachford in the County of Devon (Blachford House, Cornwood, near Ivybridge).  He died childless in 1889 when the barony became extinct.  He was succeeded in the baronetcy by his younger brother, the ninth Baronet.  The latter was in his turn succeeded by another brother, the tenth Baronet, on whose death in 1895 the baronetcy became extinct as well.

Jack Buck (fireboat): The Jack Buck is a fireboat operated by the St. Louis Fire Department in St. Louis, Missouri.

Jack Buck Award: Jack Buck Award is an award named after former St. Louis broadcaster Jack Buck and presented by the Missouri Athletic Club.  This award was established in 1987 and is presented to individuals in recognition of enthusiastic and dedicated support of sports in the city of St. Louis, Missouri.

Bob Buck: Robert “Bob” Buck (1938 – January 22, 1996), was an American sportscaster and sports director.  He was the younger brother of late St. Louis Cardinals radio broadcaster Jack Buck, and was the uncle of national television sportscaster Joe Buck.

J. Buck's: J. Buck's was a restaurant chain named after the Buck family of broadcasters, Jack Buck, Joe Buck, and Julie Buck.  Established in 1999, J. Buck's operated 2 restaurants in Greater St. Louis, Missouri.  The franchise closed on October 31, 2015.

Jack Buck: John Francis "Jack" Buck (August 21, 1924 – June 18, 2002) was an American sportscaster, best known for his work announcing Major League Baseball games of the St. Louis Cardinals.  His play-by-play work earned him recognition from numerous Halls of Fame, such as the National Baseball Hall of Fame, the Pro Football Hall of Fame, and the National Radio Hall of Fame.  He has also been inducted as a member of the St. Louis Cardinals Hall of Fame Museum.

Los Debutantes: Los Debutantes is a 2003 Chilean film directed by Andres Waissbluth and starring Antonella Rios and Alejandro Trejo.  It tells the story of two brothers from a small town, played by Nestor Castillana and Juan Pablo Miranda, who move to Santiago and visit a nightclub to celebrate the younger brother's 17th birthday.  The older brother is subsequently offered a job by the club owner Don Pascual (played by Alejandro Trejo), and both brothers become friendly with Gracia, a dancer at the club who has dreams of becoming a singer (played by Antonella Rios).  The story is told in Rashomon style from three different perspectives: firstly from the perspective of the younger brother, secondly from the perspective of the older brother, and finally from the perspective of Gracia.  The film was the Chilean submission for the 76th Academy Awards in the category Academy Award for Best Foreign Language Film which took place in 2004, but was not one of the five nominated films.  It was also nominated for the Goya Awards.  The film was released on DVD in the UK in 2005, and received a mildly critical review in Time Out.

Interstate 64 in Missouri: Interstate 64 (I-64) passes through the Greater St. Louis area in the U.S. state of Missouri.  The entire route overlaps U.S. Route 40 (US 40).  Because the road was a main thoroughfare in the St. Louis area before the development of the Interstate Highway System, it is not uncommon for locals to refer to the stretch of highway as "Highway 40" rather than "I-64".  On December 6, 2009, the portion of the highway running through the city of St. Louis was named the Jack Buck Memorial Highway in honor of the late sportscaster.

Joe Buck: Joseph Francis "Joe" Buck (born April 25, 1969) is an American sportscaster and the son of sportscaster Jack Buck.  He has won numerous Sports Emmy Awards for his work with Fox Sports, including his roles as lead play-by-play announcer for the network's National Football League and Major League Baseball coverage, and is a three-time recipient of the National Sportscaster of the Year award.  Since 1996, he has served as the play-by-play announcer for the World Series, each year, with the exceptions of 1997 and 1999.

Boreel baronets: The Boreel, later Boreel Baronetcy, of Amsterdam in the Netherlands, is a title in the Baronetage of England.  It was created on 21 March 1645 for William Boreel.  He was Dutch Ambassador to England, Sweden and Venice.  The title descended in the direct line until the death of his grandson, the third Baronet, in 1710.  The late Baronet died unmarried and was succeeded by his younger brother, the fourth Baronet.  He died without male issue and was succeeded by his first cousin, the fifth Baronet.  He was the son of James Boreel, younger son of the first Baronet.  He died childless and was succeeded by his nephew, the sixth Baronet.  He was the son of James Boreel, younger brother of the fifth Baronet.  He never married and was succeeded by his first cousin once removed, the seventh Baronet.  He was the grandson of John Hieronymous Boreel, younger brother of the fifth Baronet.  His son, the eighth Baronet, was created a Jonkheer in the Dutch nobility.  The title descended from father to son until the death of his grandson, the tenth Baronet, in 1937.

Supporting paragraphs: Bob Buck Jack Buck
Answer: sportscaster