Gerald Sidney Davis is an American former umpire in Major League Baseball. He worked in the National League from 1982 to 1999 and in Major League Baseball from 2000 to 2021. He was promoted to crew chief in 1999. Davis umpired five World Series, nine League Championship Series and eleven League Division Series. He also worked in the All-Star Game four times. Davis wore uniform number 12 throughout his career.
Adrián Beltré Pérez is a Dominican former professional baseball third baseman. During his career, Beltré played for the Los Angeles Dodgers, Seattle Mariners, Boston Red Sox, and Texas Rangers in Major League Baseball. He is regarded as one of the greatest third basemen of all time.
Jeffrey Brian Nelson is an American professional baseball umpire in Major League Baseball (MLB), who was named to the National League (NL) staff prior to the 1999 season, and has worked throughout both major leagues since 2000.
Jerry Blake Layne is an American umpire in Major League Baseball who has worked in the National League between 1989 and 1999, and throughout both major leagues since 2000. He wore uniform number 24 in the NL, but when MLB merged the AL and NL umpiring staffs in 2000, Layne was forced to switch to number 26, as AL umpire Al Clark, who also wore 24, had more seniority. When Clark was fired midway through the 2001 season by MLB, Layne reclaimed number 24 and has worn it ever since. With the retirements of Joe West and Gerry Davis in 2022, Layne became MLB's most senior active umpire.
Edward George Barrett is an American retired Major League Baseball umpire. He joined the American League's staff in 1994, and has worked throughout both major leagues since 2000. Promoted to crew chief in 2013, Barrett worked in 33 play-off series, including five World Series. He retired following the 2022 season.
Paul Lewis Emmel is an American Major League Baseball (MLB) umpire. He worked in the National League in 1999, and has worked throughout both major leagues since 2000. Emmel was named a crew chief in 2017 and wears uniform number 50.
Wallace Robert Bell was an American umpire in Major League Baseball (MLB) who worked in the National League from 1992 to 1999 and in both major leagues from 2000 to 2013. He wore the number 36 while a National League umpire, then changed to 35 when the American League and National League staffs were merged in 2000. Tim McClelland wore number 36 longer and he claimed the number.
Michael John Winters is an American former umpire in Major League Baseball who has worked in the National League from 1988 to 1999 and throughout both major leagues from 2000 to 2019, wearing number 33. For the 2011 season, Winters was named a crew chief following the retirements of Jerry Crawford, Mike Reilly, and Chuck Meriwether.
Jeffrey William Kellogg is a retired Major League Baseball umpire who worked in the National League from 1991 to 1999 and throughout both major leagues from 2000 to 2019. He wore uniform number 8, formerly worn in the NL by Hall of Fame umpire Doug Harvey from 1962 to 1992.
Edwin William Hickox is an American umpire in Major League Baseball who worked in the American League from 1990 to 1999 and throughout both major leagues beginning in 2005. He wears uniform number 15. Hickox has officiated the Division Series in 2007, 2010, 2012, and 2019 and 2020, as well as the 2011 Major League Baseball All-Star Game.
Gerald William Meals is an American retired Major League Baseball umpire. After serving as an NL reserve umpire from 1992 to 1997, he became a full-time umpire in 1998. Meals was promoted to crew chief in 2015, and worked the World Series in 2014 and 2020. He retired following the 2022 season.
Robert Lance Barksdale is an American umpire in Major League Baseball (MLB). He began umpiring in the major leagues in 2000 and joined the full-time major league staff in 2006. Barksdale was promoted to crew chief in 2023.
Todd Frederick Tichenor is an American professional baseball umpire. He became a Major League Baseball reserve umpire in 2007 and was promoted to the full-time MLB staff in 2012. He wore number 97 until the 2014 season, when he switched to number 13.
James Patrick Hoye is an American umpire in Major League Baseball. He wears number 92. Hoye worked as an MLB reserve umpire from 2003 to 2009 for both the American and National Leagues. He was hired to the full-time Major League staff prior to the 2010 season. Hoye has worked one All-Star Game (2015), two World Series, three League Championship Series, four Division Series, and five Wild Card Games/Series. He was promoted to crew chief in 2023.
Christopher Gene Guccione is an American umpire in Major League Baseball. He wears number 68.
Adrian Andre Johnson is an American umpire in Major League Baseball. He wears uniform number 80.
Mark Christopher Carlson is an American umpire in Major League Baseball. He wore number 48 until the 2012 season, when his number changed to 6. He was promoted to crew chief for the 2021 season.
Alan Dwayne Porter Jr. is an American Major League Baseball umpire. He umpired his first Major League game on April 5, 2010. He wears uniform number 64.
Jordan Christopher Baker is an American umpire for Major League Baseball.
Christopher Robert Segal is an American Major League Baseball (MLB) umpire. He wears number 96. He made his MLB umpiring debut in 2014.
