Thomas Clark "Parson" Nicholson (April 14, 1863 – February 28, 1917) was an American baseball player whose career spanned from 1887 to 1899.

He did play three seasons in Major League Baseball for the Detroit Wolverines in 1888, the Toledo Maumees in 1890, and the Washington Senators in 1895.

Over the course of 12 minor league seasons, Nicholson appeared in 837 games and compiled a .303 batting average with 48 triples, 37 home runs, and 354 stolen bases.

[2] Nicholson began his professional baseball career playing for minor league clubs in Columbus, Barnesville, and Wooster, Ohio, and in Lancaster, Pennsylvania.

[3] He joined the Detroit Wolverines late in the season, making his major league debut on September 14, 1888.

[1] Nicholson appeared in 87 games for the Mud Hens in 1889 and moved with the team when they joined the American Association and became the Toledo Maumees in 1890.

[1] In 1891, Nicholson returned to the minor leagues, playing for the Sioux City Huskers in the Western Association.

During his minor league career, he batted .303 with 48 triples, 37 home runs, and 354 stolen bases.