Question: Who pitched for 20 seasons for the Milwaukee and Atlanta Braves and was the older brother of Joe Niekro?4

Context paragraphs:
2017 Atlanta Braves season: The 2017 Atlanta Braves season was the Braves' 52nd season in Atlanta and 147th overall.  This is the Braves' first season at SunTrust Park, after playing the previous 20 seasons at Turner Field.  The Brave began the season on April 3 at Citi Field against the New York Mets and will finish the season on October 1 against the Miami Marlins at Marlins Park.  On September 22, 2017, the Braves were eliminated from postseason play.

Hank Aaron: Henry Louis "Hank" Aaron (born February 5, 1934), nicknamed "Hammer" or "Hammerin' Hank", is a retired American Major League Baseball (MLB) right fielder who is currently the senior vice president of the Atlanta Braves.  He played 21 seasons for the Milwaukee/Atlanta Braves in the National League (NL) and two seasons for the Milwaukee Brewers in the American League (AL), from 1954 through 1976.  Aaron held the MLB record for career home runs for 33 years, and he still holds several MLB offensive records.  He hit 24 or more home runs every year from 1955 through 1973, and is one of only two players to hit 30 or more home runs in a season at least fifteen times.  In 1999, "The Sporting News" ranked Aaron fifth on its "100 Greatest Baseball Players" list.

Phil Niekro: Philip Henry Niekro (pronounced NEE-kro) (born April 1, 1939), nicknamed "Knucksie", is a former Major League Baseball (MLB) pitcher.  He was inducted into the Baseball Hall of Fame in 1997 .  Niekro's 318 career victories are the most by a knuckleball pitcher and he ranks 16th on the overall all-time wins list.  He also won the National League (NL) Gold Glove Award five times.  Niekro pitched for 20 seasons for the Milwaukee and Atlanta Braves.  During his tenure in Atlanta, Niekro was selected for five All-Star teams, led the league in victories twice and earned run average once.  Niekro was also a key to the only two division titles Atlanta won before 1991 .

Lance Niekro: Lance William Niekro (born January 29, 1979) is a former Major League Baseball (MLB) player.  Niekro appeared with the San Francisco Giants in several seasons between 2003 and 2007.  He served as an assistant coach at Florida Southern College and was elevated to the head coach position on May 9, 2012.  He is the nephew of former MLB pitcher Phil Niekro and son of former MLB pitcher Joe Niekro.

Arnold Umbach: Arnold William Umbach (born December 6, 1942) is a former Major League Baseball pitcher who played for two seasons.  He pitched for the Atlanta Braves during the 1964 Milwaukee Braves season and the 1966 Atlanta Braves season.

Denny Lemaster: Denver Clayton Lemaster (born February 25, 1939) was a Major League Baseball pitcher from 1962 to 1972 for the Milwaukee Braves, Atlanta Braves, Houston Astros, and Montreal Expos.  During his decade-long career, LeMaster won 90 games and lost 105.  While with the Atlanta Braves he pitched a one-hitter against the St. Louis Cardinals.  On August 14, 1966, Lemaster recorded a then team record of 14 strikeouts in one game.

Charlie Vaughan (baseball): Charles Wayne Vaughan (born October 6, 1947) is a former Major League Baseball pitcher who played for two seasons.  He pitched for the Atlanta Braves for one game during the 1966 Atlanta Braves season and one game during the 1969 Atlanta Braves season.  Vaughn was the youngest player to play in the MLB in 1966, the second youngest being Nolan Ryan.  Vaughan had one career hit in four at bats.

Austin Braves: The Austin Braves were a Minor League Baseball team in the East Division of the Texas League and were affiliated with the Milwaukee/Atlanta Braves.  Originally known as the Austin Senators from 1956 to 1964, they played at Disch Field.  In 1965, they became the Austin Braves coming in last place with an even record of 70-70.  In 1966, the Braves finished in fourth place with a losing record of 67-73.  In 1967, the team also finished in fourth place with a losing record of 69-71.  In 1968, the Atlanta Braves moved the Austin Braves to Shreveport, Louisiana, where they played as the Shreveport Braves of the Texas League from 1968 to 1970.

History of the Boston Braves: The Atlanta Braves, a current Major League Baseball franchise, originated in Boston, Massachusetts.  This article details the history of the Boston Braves, from 1871 to 1952, after which they moved to Milwaukee to become the Milwaukee Braves, and then eventually to Atlanta, to become the Atlanta Braves.  The Boston Franchise played at South End Grounds from 1871 to 1914 and at Braves Field from 1915 to 1952.  Braves Field is now Nickerson Field of Boston University.  The franchise, from Boston to Milwaukee to Atlanta, is the oldest continuous professional baseball franchise.

Joe Niekro: Joseph Franklin "Joe" Niekro (November 7, 1944 – October 27, 2006) was an American Major League Baseball right-handed pitcher.  He was the younger brother of pitcher Phil Niekro, and the father of Major League pitcher and first baseman Lance Niekro.  Born and grew up in Martins Ferry, Ohio, Niekro attended Bridgeport High School in Bridgeport, Ohio and attended West Liberty University in West Liberty, West Virginia.  During a 22-year baseball career, he pitched from 1967–1988 for seven different teams, primarily for the Houston Astros.

Supporting paragraphs: Joe Niekro Phil Niekro
Answer: Phil Niekro