Walter Merrill "Pop" Williams (May 19, 1874 – August 4, 1959) was a professional baseball pitcher whose playing career spanned nine seasons, including three in Major League Baseball.
 He was born in Bowdoinham, Maine on May 19, 1874.
 Williams batted right-handed and threw left-handed.
 Over his major league career, Williams compiled a win-loss record of 16–25 with a 3.17 earned run average (ERA), 41 complete games, two shutouts and 132 strikeouts in 47 games, all starts.
 He was also the coach of the Bowdoin College baseball team during the spring of 1903.
 During his time in the majors and the minor leagues, Williams occasionally played outfield and first base.
 In the majors, Williams played for the Washington Senators (1898), Chicago Cubs (1902–1903), Philadelphia Phillies (1903) and the Boston Beaneaters (1903).
James Clayton Russell (born January 8, 1986) is an American professional baseball pitcher for the Leones de Yucatán of the Mexican Baseball League.
 He played college baseball at Navarro College and the University of Texas at Austin.
 He was drafted by the Chicago Cubs in the 14th round of the 2007 Major League Baseball draft and made his Major League Baseball (MLB) debut on April 5, 2010.
 He has also played for the Atlanta Braves and Philadelphia Phillies.
Robert Charles Roy (1884–1950), was a professional baseball pitcher in the Major Leagues for the 1906 Philadelphia Phillies.
 After playing baseball at the Morris Industrial School for Indians in Minnesota and the Carlisle Indian Industrial School in Pennsylvania, he was signed by the Philadelphia Phillies and played in the 1906 baseball season.
 Following that season, he played for some minor league teams before quitting professional baseball after the 1907 season.
 Roy eventually relocated to Idaho where he worked at the Fort Hall Indian Reservation school until his death.
 His brother, Luther Roy, also played professional baseball.
Aaron Michael Nola (born June 4, 1993) is an American professional baseball pitcher for the Philadelphia Phillies of Major League Baseball (MLB).
 He played college baseball at Louisiana State University (LSU).
 He was drafted by the Phillies in the first round of the 2014 Major League Baseball draft, and made his major league debut on July 21, 2015.
Harold William "Ace" Elliott (May 29, 1899 – April 25, 1963) was an American baseball pitcher.
 He played Major League Baseball for the Philadelphia Phillies from 1929 to 1932.
 He led the National League by appearing in 48 games as a pitcher in 1930.
 Over his four-year major league career, he compiled an 11-24 record with a 6.95 earned run average (ERA).
 Elliot has the dubious distinction of having the highest career ERA among all major league pitchers with at least 300 innings pitched since baseball's modern era began in 1900.
Christopher R. Kissock (born May 2, 1985 in Trail, British Columbia) is a Canadian professional baseball pitcher who was in the minor league baseball organization of the Philadelphia Phillies of Major League Baseball, but is currently with the Winnipeg Goldeyes after being released by the Phillies on August 3, 2012.
 Kissock has also competed for the Canadian national baseball team.
John Samuel "Jocko" Thompson (January 17, 1917 – February 3, 1988) was a professional baseball pitcher.
 He played all or part of four seasons for the Philadelphia Phillies of Major League Baseball from 1948 to 1951.
 He also served in the Army of the United States as a first lieutenant in the European theater during World War II.
 Thompson played in Major League Baseball during the Whiz Kids era during a career which spanned 12 seasons (1940–1941, 1946–1955).
 After attending Northeastern University, Thompson appeared as a situational pitcher and spot starter during the 1948, 1949, and 1950 seasons with the Phillies, and went 4–8 in his only season as a regular member of the team's starting rotation.
 After demotion to the minors in 1952, Thompson retired from baseball after the 1955 season.
The Philadelphia Phillies are an American professional baseball team based in Philadelphia, Pennsylvania.
 They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating back to 1883.
 The Phillies compete in Major League Baseball (MLB) as a member club of the National League (NL) East division.
 Since 2004, the team's home has been Citizens Bank Park, located in South Philadelphia.
Brian James Rosenberg (born September 17, 1985) is an American former professional baseball pitcher.
 He threw right-handed, and was primarily a relief pitcher.
 Rosenberg was born in Newport News, Virginia, but attended Meade County High School in Kentucky.
 Subsequently, he attended the University of Louisville, where he played for four years and graduated prior to the Philadelphia Phillies drafting him in the 2008 Major League Baseball Draft.
 He progressed through the Phillies minor league system over the next several years, and ultimately made his Major League debut June 9, 2012.
 Over the remainder of that season and the 2013 season, he split time between the Phillies' Triple-A affiliate the Lehigh Valley Iron Pigs and the Major League squad.
Jonathan H. Pettibone (born July 19, 1990) is an American professional baseball player.
 He is a starting pitcher for the New Britain Bees of the Atlantic League of Professional Baseball.
 He has played for the Philadelphia Phillies of Major League Baseball (MLB).
 Originally from Placentia, California, he grew up in Yorba Linda, California (where he now resides in the off season) in a family of five; his father, Jay Pettibone, was a former MLB pitcher.
 After committing to play baseball for the University of Southern California Trojans, the Phillies drafted him in the third round of the 2008 MLB draft, and he signed with the club after being swayed there by some Phillies' players.

Question: Harold William "Ace" Elliott (May 29, 1899 – April 25, 1963) was an American baseball pitcher, he played in Major League Baseball, from 1929 to 1932, in the Philadelphia Phillies, an American professional baseball team based in Philadelphia, in which US state?
Answer: Pennsylvania