b. September 17, 1849 · Played in the very first National Association game in 1871 and had the most hits in the National League in 1884, thirteen years later.

b. September 17, 1863 · Pitcher for the Philadelphia Athletics, 1888 to 1888.

b. September 17, 1871 · Third baseman across two clubs, 1898 to 1898.

b. September 17, 1879 · Founded the Negro National League in 1920, and his own playing career ended in 1917, three years before there was a league to count it.

b. September 17, 1882 · Was the first man with twenty doubles, twenty triples, twenty home runs and twenty steals in a season, and the first National League player named most valuable.

b. September 17, 1899 · Right-hander who gave up part of the ten-run inning that decided the 1929 World Series.

b. September 17, 1907 · Right fielder for the Philadelphia Athletics, 1927 to 1927.

b. September 17, 1913 · Pitcher across two clubs, 1938 to 1940.

b. September 17, 1917 · Pitcher across six clubs, 1945 to 1955.

b. September 17, 1918 · Third baseman who batted .306 across four clubs, 1946 to 1951.

b. September 17, 1923 · Third baseman for the Cleveland Indians, 1945 to 1945.

b. September 17, 1937 · Rookie of the Year in 1958 and Most Valuable Player in 1967, he came seven votes short of the Hall of Fame in 1994 and waited five more years.

b. September 17, 1938 · Shortstop who batted .215 across two clubs, 1960 to 1972.

b. September 17, 1939 · Pitcher for the Washington Senators, 1961 to 1964.

b. September 17, 1947 · Baseball figure for the Houston Astros, 1967 to 1967.

b. September 17, 1960 · Saved 424 games, more than any left-hander has, over twenty-one seasons.

b. September 17, 1972 · Pitcher across two clubs, 1997 to 2003.

b. September 17, 1981 · Pitcher across two clubs, 2006 to 2015.

b. September 17, 1985 · Pitcher for the Philadelphia Phillies, 2012 to 2014.

b. September 17, 1988 · Pitcher for the Detroit Tigers, 2012 to 2012.

b. September 17, 1990 · Pitcher for the Houston Astros, 2016 to 2019.

b. September 17, 1994 · Pitcher for the Chicago White Sox, 2022 to 2022.

b. September 17, 2000 · Pitcher for the Los Angeles Angels of Anaheim, 2023 to 2025.

b. September 17, 2000 · Pitcher for the New York Mets, 2025 to 2025.

d. September 17, 1892 · Right fielder who batted .216 across two clubs, 1875 to 1877.

d. September 17, 1899 · Second baseman for the Louisville Grays, 1877 to 1877.

d. September 17, 1920 · Left fielder who batted .261 across three clubs, 1877 to 1885.

d. September 17, 1926 · Pitcher for the Washington Senators, 1913 to 1913.

d. September 17, 1935 · Center fielder who batted .297 across two clubs, 1932 to 1935.

d. September 17, 1939 · Catcher for the Washington Statesmen, 1891 to 1891.

d. September 17, 1946 · Pitcher for the Chicago White Sox, 1910 to 1910.

d. September 17, 1946 · Center fielder across two clubs, 1906 to 1907.

d. September 17, 1950 · Catcher across three clubs, 1889 to 1891.

d. September 17, 1967 · Pitcher across two clubs, 1914 to 1915.

d. September 17, 1968 · Right fielder for the Chicago White Sox, 1922 to 1922.

d. September 17, 1970 · Pitcher for the Chicago White Sox, 1918 to 1918.

d. September 17, 1989 · Center fielder who batted .266 across two clubs, 1943 to 1948.

d. September 17, 1993 · Third baseman for the Chicago Cubs, 1943 to 1944.

d. September 17, 1996 · Center fielder for the Chicago White Sox, 1949 to 1949.

d. September 17, 1998 · Pitcher across three clubs, 1911 to 1915.

d. September 17, 1998 · Pitcher for the New York Giants, 1945 to 1946.

d. September 17, 2000 · Second baseman who batted .249 across two clubs, 1964 to 1972.

d. September 17, 2001 · Pitcher across three clubs, 1950 to 1955.

d. September 17, 2005 · First baseman who batted .274 across four clubs, 1961 to 1972.

d. September 17, 2006 · Pitcher for the Brooklyn Dodgers, 1947 to 1950.

d. September 17, 2017 · Third baseman who batted .213 for the San Diego Padres, 1972 to 1975.

d. September 17, 2023 · Pitcher across four clubs, 1972 to 1978.