How many Negro League players are in the Hall of Fame?

To date, 18 players have been inducted into the National Baseball Hall Of Fame principally upon the basis of their outstanding careers in Negro League baseball:

Satchel Paige (1971)
Josh Gibson (1972)
Buck Leonard (1972)
Monte Irvin (1973)
Cool Papa Bell (1974)
Judy Johnson (1975)
Oscar Charleston (1976)
John Henry Lloyd (1977)
Martin Dihigo (1977)
Rube Foster (1981)
Ray Dandridge (1987)
Leon Day (1995)
Willie Foster (1996)
Willie Wells (1997)
Bullet Rogan (1998)
Smokey Joe Williams (1999)
Turkey Stearnes (2000)
Hilton Smith (2001)