b. April 7, 1854 · Center fielder for the Baltimore Marylands, 1873 to 1873.

b. April 7, 1873 · A third baseman for the rough Baltimore Orioles of the 1890s who reached base more often than anyone except Ted Williams and Babe Ruth.

b. April 7, 1879 · Catcher across four clubs, 1902 to 1908.

b. April 7, 1883 · Pitcher for the Boston Doves, 1909 to 1910.

b. April 7, 1885 · Pitcher across two clubs, 1906 to 1909.

b. April 7, 1886 · Pitcher across three clubs, 1909 to 1915.

b. April 7, 1893 · Third baseman for the New York Giants, 1914 to 1914.

b. April 7, 1893 · Third baseman for the Boston Braves, 1915 to 1915.

b. April 7, 1902 · Second baseman for the Chicago White Sox, 1928 to 1929.

b. April 7, 1918 · Fourteen seasons at second base, all of them for the Red Sox, ended at 33 by a back injury.

b. April 7, 1921 · Pitcher for the New York Giants, 1943 to 1944.

b. April 7, 1933 · Center fielder who batted .229 across six clubs, 1952 to 1965.

b. April 7, 1944 · Pitcher across three clubs, 1967 to 1974.

b. April 7, 1951 · Third baseman for the Kansas City Royals, 1978 to 1978.

b. April 7, 1951 · Second baseman for the Cleveland Indians, 1977 to 1977.

b. April 7, 1955 · Center fielder who batted .243 across two clubs, 1980 to 1983.

b. April 7, 1973 · Pitched for ten clubs in fourteen years and finished three games under .500.

b. April 7, 1977 · Catcher who batted .257 across two clubs, 1999 to 2003.

b. April 7, 1979 · The first player born in the Dominican Republic to reach 3,000 hits, and the leader in career hits among third basemen.

b. April 7, 1979 · Second baseman for the Philadelphia Phillies, 2005 to 2006.

b. April 7, 1986 · Pitcher for the Houston Astros, 2013 to 2013.

b. April 7, 1988 · Pitcher for the Arizona Diamondbacks, 2013 to 2013.

b. April 7, 1993 · Third baseman who batted .234 for the Chicago Cubs, 2018 to 2024.

b. April 7, 1993 · Pitcher across three clubs, 2015 to 2025.

d. April 7, 1899 · Right fielder across three clubs, 1883 to 1884.

d. April 7, 1914 · Catcher who batted .259 across four clubs, 1884 to 1897.

d. April 7, 1927 · Third baseman who batted .253 across five clubs, 1885 to 1893.

d. April 7, 1927 · First baseman across two clubs, 1917 to 1917.

d. April 7, 1939 · Center fielder for the Dayton Marcos, 1920 to 1920.

d. April 7, 1957 · Pitcher who won 107 games with a 2.30 ERA for the Chicago White Sox, 1909 to 1917.

d. April 7, 1959 · Pitcher for the Cleveland Indians, 1923 to 1923.

d. April 7, 1963 · Catcher for the Boston Doves, 1907 to 1908.

d. April 7, 1966 · Left fielder who batted .256 across five clubs, 1921 to 1932.

d. April 7, 1968 · Pitcher across three clubs, 1937 to 1941.

d. April 7, 1968 · Left fielder for the New York Giants, 1922 to 1922.

d. April 7, 1970 · Pitcher for the St. Louis Browns, 1924 to 1924.

d. April 7, 1972 · Catcher regarded as among the best defensively in the Negro Leagues, who caught for a dozen clubs across twenty-five seasons.

d. April 7, 1993 · Pitcher across two clubs, 1955 to 1957.

d. April 7, 1993 · Right fielder for the Washington Senators, 1945 to 1945.

d. April 7, 1995 · Left fielder across three clubs, 1940 to 1946.

d. April 7, 1997 · Pitcher for the Chicago White Sox, 1950 to 1953.

d. April 7, 2005 · Lost three full seasons to the Navy in World War II, then played thirteen more and later ran two major-league front offices.

d. April 7, 2015 · Pitcher across four clubs, 2004 to 2008.

d. April 7, 2020 · First baseman for the Chicago White Sox, 1970 to 1970.

d. April 7, 2021 · Pitcher across two clubs, 1962 to 1964.

d. April 7, 2021 · Pitcher for the Detroit Tigers, 1959 to 1959.

d. April 7, 2024 · Caught for the Miracle Mets in 1969 and was considered the best defensive catcher in the National League for a decade.

d. April 7, 2026 · Pitcher for the Minnesota Twins, 1964 to 1964.