Henry Homer "Doc" Gessler (December 23, 1880 - December 25, 1924) was a Major League Baseball player born in Greensburg, Pennsylvania who began his eight season career, at the age of 22, with the Detroit Tigers in 1903. He played mainly as a right fielder in a career that totaled 880 games played, 2969 at bats, 831 hits, 363 RBIs and 14 home runs. Doc died in Greensburg at the age of 44, and is interred in Saint Bernard Cemetery in Indiana, Pennsylvania.