b. February 21, 1870 · Pitcher for the Buffalo Bisons, 1890 to 1890.

b. February 21, 1879 · Pitcher for the St. Louis Browns, 1906 to 1906.

b. February 21, 1886 · Pitcher across two clubs, 1912 to 1915.

b. February 21, 1890 · Pitcher for the Cleveland Naps, 1914 to 1914.

b. February 21, 1896 · Pitcher across two clubs, 1918 to 1922.

b. February 21, 1903 · Owned the Red Sox for forty-four years, and they were the last club in the major leagues to field a Black player.

b. February 21, 1919 · Catcher who batted .270 for the Philadelphia Stars, 1943 to 1948.

b. February 21, 1940 · Pitcher for the Detroit Tigers, 1962 to 1962.

b. February 21, 1942 · Pitcher across two clubs, 1962 to 1967.

b. February 21, 1947 · Pitcher for the Minnesota Twins, 1969 to 1969.

b. February 21, 1948 · Pitcher for the Detroit Tigers, 1972 to 1974.

b. February 21, 1958 · Played twenty seasons at shortstop for Detroit, nineteen of them beside Lou Whitaker, and was passed over by the writers fifteen times.

b. February 21, 1975 · Right fielder for the Kansas City Royals, 2001 to 2004.

b. February 21, 1977 · Pitcher for the St. Louis Cardinals, 2001 to 2001.

b. February 21, 1981 · Baseball figure across two clubs, 2005 to 2012.

b. February 21, 1982 · Catcher for the Colorado Rockies, 2007 to 2009.

b. February 21, 1983 · Center fielder who batted .257 across three clubs, 2005 to 2017.

b. February 21, 1990 · Pitcher for the Chicago White Sox, 2017 to 2017.

b. February 21, 1991 · Second baseman who batted .274 for the Toronto Blue Jays, 2015 to 2018.

b. February 21, 1992 · Center fielder across two clubs, 2019 to 2020.

b. February 21, 1995 · Pitcher for the Texas Rangers, 2018 to 2018.

b. February 21, 2000 · Catcher who batted .205 for the Cleveland Guardians, 2022 to 2025.

b. February 21, 2001 · Catcher for the Los Angeles Dodgers, 2025 to 2025.

b. February 21, 2003 · Catcher for the Seattle Mariners, 2025 to 2025.

d. February 21, 1901 · Second baseman for the Buffalo Bisons, 1885 to 1885.

d. February 21, 1914 · Catcher who batted .274 across six clubs, 1886 to 1899.

d. February 21, 1918 · Left fielder for the St. Louis Maroons, 1885 to 1885.

d. February 21, 1927 · Second baseman for the St. Louis Browns, 1905 to 1906.

d. February 21, 1932 · Catcher across three clubs, 1915 to 1922.

d. February 21, 1934 · Catcher across two clubs, 1884 to 1887.

d. February 21, 1938 · Right fielder for the Pittsburgh Pirates, 1901 to 1903.

d. February 21, 1941 · Pitcher across three clubs, 1904 to 1910.

d. February 21, 1944 · Catcher across two clubs, 1914 to 1915.

d. February 21, 1946 · Second baseman for the Washington Senators, 1910 to 1912.

d. February 21, 1948 · Shortstop who batted .292 across two clubs, 1888 to 1891.

d. February 21, 1953 · Pitcher for the Chicago Cubs, 1921 to 1922.

d. February 21, 1959 · Third baseman who batted .216 across two clubs, 1903 to 1905.

d. February 21, 1969 · Collected 156 hits, scored 101 runs and stole 36 bases for Philadelphia in 1914.

d. February 21, 1970 · Pitcher who batted .258 across four clubs, 1922 to 1934.

d. February 21, 1973 · Catcher who batted .263 across three clubs, 1933 to 1938.

d. February 21, 1989 · Left fielder who batted .241 across two clubs, 1939 to 1944.

d. February 21, 1999 · Pitcher across two clubs, 1937 to 1939.

d. February 21, 2002 · Pitcher across three clubs, 1962 to 1970.

d. February 21, 2010 · Shortstop who batted .224 across two clubs, 1950 to 1960.

d. February 21, 2014 · Center fielder who batted .236 for the Pittsburgh Pirates, 1953 to 1958.

d. February 21, 2014 · Pitcher for the Washington Senators, 1960 to 1961.

d. February 21, 2021 · Pitcher for the Milwaukee Braves, 1954 to 1955.

d. February 21, 2023 · Won the 1958 American League Rookie of the Year award and later led the league with 115 runs.