- Barlick was a professional umpire for five decades, including 27 seasons working in the National League. He reached the majors at the age of 25 in 1940 and retired in 1971.
Nestor L. Chylak Jr.
Birthplace: Olyphant, PA
Died: 2/17/82, Dunmore, PA
- Chylak, who received both the Silver Star and Purple Heart after being seriously wounded in the Battle of the Bulge, joined the American League in 1954 and umpired for 25 seasons until a mild stroke forced him to retire in 1978. He was at first base for Bill Mazeroski's home run that ended the 1960 World Series.
John Bertrand (Jocko) Conlan
Birthplace: Chicago, IL
Died: 4/1/89, Scottsdale, AZ
- Conlan became a professional umpire by accident. During a 1935 White Sox-Browns game, Conlan, a White Sox outfielder, was asked to fill in for Red Ormsby, who was overcome by heat. The next year he began his career in umpiring. Conlan joined the National League in 1941 and retired in 1964.
Thomas Henry (Tom) Connolly
Birthplace: Machester, England
Died: 4/28/61, Natick, MA
- Connolly, one of the first two umpires to be enshrined in the Hall of Fame, originally worked in the National League from 1898-1900, before moving over to the American League in 1901. He worked the AL's first game on April 24, 1901 in Chicago and upon his retirment in 1931 Connolly was appointed the league's first umpire-in-chief by William Harridge. He served in that capacity until 1954.
William George (Billy) Evans
Birthplace: Chicago, IL
Died: 1/23/56, Miami, FL
- Evans became the youngest umpire in major league history when he worked for the American League in 1906 at the age of 22. He umpired through 1927 and then went on to be an executive for various clubs.
Harold Douglas (Doug) Harvey
Birthplace: South Gate, CA
- Harvey, a National League crew chief in 18 of his 31 seasons who worked 4,673 games, stressed the importance of timing and mentored a generation of younger umpires. Known for his firm control over the games he worked, Doug was behind the plate for Kirk Gibson's pinch-hit home run in Game 1 of the 1988 World series.
Robert Calvin (Cal) Hubbard
Birthplace: Keytesville, MO
Died: 12/17/77, St. Petersburg, FL
- Hubbard reached the American League in 1936 after eight seasons in the minor leagues and worked until a hunting accident forced him to an early retirement in 1951. He went on to become the first person ever inducted into three national sports shrines, having been previously honored by the College and Professional Football Halls of Fame.
William J. (Bill) Klem
Birthplace: Rochester, NY
Died: 9/1/51, Miami, FL
- Known as "The Old Arbitrator," Klem umpired in the National League for 37 years before retiring in 1941. He spent his first 16 seasons as an umpire working exclusively behind the plate because of his superior ability to call balls and strikes. Upon his retirement, Klem became the NL's first modern chief of umpires.
William Aloysius (Bill) McGowan
Birthplace: Wilmington, DE
Died: 12/9/54, Silver Spring, MD
- McGowan reached the American League in 1925 and his colorful style of umpiring never waned over his 30-year career. An iron man among umpires, McGowan once went 16 years without missing an inning (2,541 consecutive games).