John Stewart Williamson (29 April 1908 – 10 November 2006), who wrote as Jack Williamson, was an American science fiction writer, one of several called the "Dean of Science Fiction".
Grand Masters Robert A. Heinlein (1975) | Jack Williamson (1976) | Clifford D. Simak (1977) | L. Sprague de Camp (1979) | Fritz Leiber (1981) | Andre Norton (1984) | Arthur C. Clarke (1986) | Isaac Asimov (1987) | Alfred Bester (1988) | Ray Bradbury (1989) | Lester del Rey (1991) | Frederik Pohl (1993) | Damon Knight (1995) | A. E. van Vogt (1996) | Jack Vance (1997) | Poul Anderson (1998) | Hal Clement (1999) | Brian W. Aldiss (2000) | Philip José Farmer (2001) | Ursula K. Le Guin (2003) | Robert Silverberg (2004) | Anne McCaffrey (2005) | Harlan Ellison (2006) | James Gunn (2007) | Michael Moorcock (2008) | Harry Harrison (2009) | Joe Haldeman (2010) | Connie Willis (2012) | Gene Wolfe (2013) | Samuel R. Delany (2014) | Larry Niven (2015) | C. J. Cherryh (2016) | Jane Yolen (2017) | Peter S. Beagle (2018) | William Gibson (2019) | Lois McMaster Bujold (2020) | Nalo Hopkinson (2021) | Mercedes Lackey (2022) | Robin McKinley (2023) | Susan Cooper (2024)
Infinity Award Winners Octavia E. Butler (2023) | Tanith Lee (2024)
SFWA Grand Masters