Question: Who was the founder of the sports league Mirtha Marrero played in?

full_context: Document 1: Lenora Mandella: Lenora Mandella (4 May 1931 - 12 August 2005) played shortstop and pitcher in the All-American Girls Professional Baseball League between 1949 and 1951. She both batted and threw right-handed. Her nickname was Smokey. She measured in at 5 feet 7 inches and weighed 145 pounds.
Document 2: Rick Ferrell: Richard Benjamin Ferrell (October 12, 1905 – July 27, 1995) was an American professional baseball player, coach, scout, and executive. He played for 18 seasons in Major League Baseball (MLB) as a catcher for the St. Louis Browns, Boston Red Sox, and Washington Senators, from 1929 through 1947. His brother, Wes Ferrell, was a major league pitcher for 15 seasons, and they were teammates from 1933 through part of 1938 on the Red Sox and Senators. Following his three seasons in minor league baseball, he appealed to the Commissioner of Baseball to become a free agent, claiming that he was being held in the minors though he deserved promotion. The Commissioner agreed, and he was granted free agency; he signed with the St. Louis Browns.
Document 3: Guillermo Mota: Guillermo Reynoso Mota (born July 25, 1973) is a Dominican former professional baseball relief pitcher in Major League Baseball. In his career, he pitched for the Montreal Expos, Los Angeles Dodgers, Florida Marlins, Cleveland Indians, New York Mets, Milwaukee Brewers and San Francisco Giants. Mota is 6 ft tall and weighs 240 lb . He throws and bats right-handed. He throws three pitches: a fastball, a slider and a circle changeup.
Document 4: Minnie Miñoso: Orestes "Minnie" Miñoso (born Saturnino Orestes Armas Miñoso Arrieta, ; ] , November 29, 1925 – March 1, 2015), nicknamed "The Cuban Comet" and "Mr. White Sox", was a Cuban Negro league and Major League Baseball (MLB) player. He began his baseball career in 1946 and became an All-Star third baseman with the New York Cubans and was signed by the Cleveland Indians after the 1948 season as baseball's color line slowly fell. Miñoso went on to become an All-Star left fielder with the Indians and Chicago White Sox. The first Black Cuban in the major leagues and the first black player in White Sox history, as a 1951 rookie he was the one of the first Latin Americans to play in an MLB All-Star Game.
Document 5: Mariano Rivera: Mariano Rivera (born November 29, 1969) is a Panamanian-American former professional baseball pitcher who played 19 seasons in Major League Baseball (MLB) for the New York Yankees, from 1995 to 2013. Nicknamed "Mo" and "Sandman", Rivera spent most of his career as a relief pitcher and served as the Yankees' closer for 17 seasons. A thirteen-time All-Star and five-time World Series champion, he is MLB's career leader in saves (652) and games finished (952). Rivera won five American League (AL) Rolaids Relief Man Awards and three Delivery Man of the Year Awards, and he finished in the top three in voting for the AL Cy Young Award four times.
Document 6: Dan Mara: Danny "Dan" Mara is a retired College basketball (section Women's) coach who is in his ninth year as Commissioner of the Central Atlantic Collegiate Conference and former Chair of the NCAA Division II Membership Committee. He spent 16 years directing a highly successful basketball camp at Mitchell College where he is considered a special alumni. As head coach at Mitchell, he coached ten Kodak All-Americans including future Women's National Basketball Association (WNBA) Rita Williams. Williams went on to University of Connecticut to lead them to the 1998 Big East Championship and was named tournament Most Valuable Player (MVP). She was the 12th pick in the 1998 WNBA Draft and was chosen as the first all-star game representative in Indiana Fever history. As coach of the New London, Connecticut junior college team, Mara was the legal guardian of the longest regular-season winning streak in college basketball. In his coaching career at Mitchell college, Mara still lived on campus, in Matteson Hall, a men's dorm. He roomed with Pep, a 16-year-old Samoyed and collie mix, who until the '94 basketball season sat beside him at home games. To players he is something of a father figure to potential athletes, because each year Mara looks after stray players who, for various reasons, have not found a place at a four-year college, and he makes them part of his family.
Document 7: A League of Their Own: A League of Their Own is a 1992 American sports comedy-drama film that tells a fictionalized account of the real-life All-American Girls Professional Baseball League (AAGPBL). Directed by Penny Marshall, the film stars Geena Davis, Tom Hanks, Madonna, and Lori Petty. The screenplay was written by Lowell Ganz and Babaloo Mandel from a story by Kelly Candaele and Kim Wilson.
Document 8: List of Boston Red Sox managers: The Boston Red Sox are a professional baseball team based in Boston, Massachusetts. The Red Sox are members of the American League (AL) East Division in Major League Baseball (MLB). There have been 44 different managers in their franchise history; four during the era of the Boston Americans (1901–1907) and the rest under the Boston Red Sox (1908–present). In baseball, the head coach of a team is called the manager, or more formally, the field manager. Since 1912, the Red Sox have played their home games at Fenway Park.
Document 9: Dick Williams: Richard Hirschfeld Williams (May 7, 1929 – July 7, 2011) was an American left fielder, third baseman, manager, coach and front office consultant in Major League Baseball. Known especially as a hard-driving, sharp-tongued manager from 1967 to 1969 and from 1971 to 1988, he led teams to three American League pennants, one National League pennant, and two World Series triumphs. He is one of seven managers to win pennants in both major leagues, and joined Bill McKechnie in becoming only the second manager to lead three franchises to the Series. He and Lou Piniella are the only managers in history to lead four teams to seasons of 90 or more wins. Williams was inducted into the Baseball Hall of Fame in 2008 following his election by the Veterans Committee.
Document 10: Mirtha Marrero: Mirtha Marrero [Fernández] is a former pitcher who played from 1948 through 1953 in the All-American Girls Professional Baseball League. She batted and threw right handed.
Document 11: 1926 American Football League season: The 1926 American Football League season is the only season of the existence of the first American Football League. It started with nine teams, with the initial game of the season being played in front of 22,000 fans in Cleveland, Ohio, but by the end of the season (December 14, 1926), only four teams were still in existence: three teams owned or subsidized by league founder C. C. Pyle and star Red Grange (New York Yankees, Los Angeles Wildcats, and Chicago Bulls) and league champion Philadelphia Quakers. The initial lineup of teams included the traveling Wildcats and a charter member of the National Football League, the Rock Island Independents, which became a second traveling team after having poor attendance in its first three games.
Document 12: All-American Girls Professional Baseball League: The All-American Girls Professional Baseball League was a women's professional baseball league founded by Philip K. Wrigley which existed from 1943 to 1954. Over 600 women played in the league. In 1948, league attendance peaked over 900,000 spectators in attendance. The Rockford Peaches won a league-best four championships while playing in the AAGPBL. For most of the league's history, manager Bill Allington coached different teams and led the league in career wins as a manager. The 1992 motion picture "A League of Their Own" tells a fictionalized account of the Rockford Peaches.
Document 13: Oreste Marrero: Oreste Vilato Marrero Vázquez (born October 31, 1969) is a former professional baseball first baseman. He played parts of two seasons in Major League Baseball for the Los Angeles Dodgers and Montreal Expos, appearing in 42 games during the 1993 and 1996 seasons. After his release from the Dodgers system, Marrero played from 2000 to 2005 in the Atlantic League, primarily with the Bridgeport Bluefish.
Document 14: Orlando Peña: Orlando Gregorio Peña Guevara (born November 17, 1933) is a former pitcher who played in Major League Baseball between 1958 and 1975 for the Cincinnati Reds (1958–60), Kansas City Athletics (1962–65), Detroit Tigers (1965–67), Cleveland Indians (1967), Pittsburgh Pirates (1970), Baltimore Orioles (1971, 1973), St. Louis Cardinals (1973–74) and California Angels (1975). He batted and threw right-handed.
Document 15: List of Atlanta Braves managers: The Atlanta Braves are a professional baseball team based in Atlanta, Georgia. The Braves are members of the National League (NL) East division in Major League Baseball (MLB). Since the franchise started as the Boston Red Stockings (no relationship to the current Boston Red Sox team) in 1871, the team has changed its name several times and relocated twice. The Braves were a charter member of the NL in 1876 as the Boston Red Caps, and are one of the NL's two remaining charter franchises (the other being the Chicago Cubs). In baseball, the head coach of a team is called the manager, or more formally, the field manager. The duties of the team manager include team strategy and leadership on and off the field. The Braves franchise has employed 45 managers.
ground_truth: Philip K. Wrigley