Lester Henry Rock (born Lester Henry Schwarzrock; August 19, 1912 – September 9, 1991) was an American professional baseball first baseman in Major League Baseball. He played for the Chicago White Sox in 1936.
Les Rock
| Given name: | Lester Henry Rock |
| Nicknames: | None |
| Primary Pos: | Firstbase |
| Hght/Wght: | 6'2" / 184 lbs |
| Bats/Throws: | L / R |
| Born: | Aug 19, 1912 in Springfield, MN |
| Died: | Sep 9, 1991 in Davis, CA (79 years old) |
| Debut: | Sep 11, 1936 |