Prior to the commencement of his career, from 1981 to 1984, Stillwell served as president of
Starfleet: The International Star Trek Fan Association. During Stillwell's administration, he presided over structural reorganizations within the group, restored good relations with the
Star Trek Welcommittee, and increased the group's visibility by publicizing with
Starlog,
Susan Sackett (Trek creator
Gene Roddenberry's personal assistant), and notable fandom figure
Bjo Trimble, leading its figures to swell toward 3,000 fans. Today, the
Guinness Book of World Records recognizes Starfleet as the world's largest science fiction fan club. Stillwell has participated in several "Cruise Trek" cruises. ==Later activities==