Martin is a member of the Science Fiction and Fantasy Writers of America (SFWA); he served as the organization's Southwest Regional Director from 1977 to 1979, and as its vice-president from 1996 to 1998.
Membru al Science Fiction and Fantasy Writers of America (SFWA), Martin a fost directorul regiunii de sud-est al acestei organizații între 1977 to 1979, iar din 1996 până în 1998 a fost vicepreședinte.