The Plainfield Crescent Cities were a minor league baseball team based in Plainfield, New Jersey. In 1891 and 1892, the Crescent Cities teams played exclusively as members of the Central New Jersey League, reportedly winning championships in both Seasons. Plainfield hosted home minor league games at the Crescent League Base Ball Grounds.

William Henry Keeler, nicknamed "Wee Willie" because of his small stature, was an American right fielder in Major League Baseball who played from 1892 to 1910, primarily for the Baltimore Orioles and Brooklyn Superbas in the National League, and the New York Highlanders in the American League. Keeler, one of the best hitters of his time, was elected to the National Baseball Hall of Fame in 1939. One of the greatest contact hitters of all time and notoriously hard to strike out, Keeler has the highest career at bats-per-strikeout ratio in MLB history, averaging 63.17 at bats between each strikeout. His plate appearance-per-strikeout ratio is also one of the best of all time, with Keeler averaging 70.66 plate appearances between strikeouts, second only to Joe Sewell, another Hall of Famer, who averaged 73.06 plate appearances between each strikeout.