Nielsen Hayden genealogy

The Encyclopedia of Science Fiction, third edition, ed. John Clute, David Langford, Peter Nicholls (emeritus) and Graham Sleight (managing). 1995-ongoing.

• Title	The Encyclopedia of Science Fiction, third edition, ed. John Clute, David Langford, Peter Nicholls (emeritus) and Graham Sleight (managing). 1995-ongoing.
  Source ID	S5237
  Linked to (2)	Shirley Bell "Lee" Hoffman Damon Francis Knight