Issue #18 saw a new semi-regular feature entitled "Forteana Corrigenda," aimed at correcting "errors in the literature" that had crept into various Fortean works through misquotation or other difficulties. After 18 more-or-less solo-produced issues, long-term supporter and helper Steve Moore was credited as assistant editor for issues #19–21, becoming co-contributing editor (with Phil Ledger, Stan Nichols and Paul J Willis) on issues #22–26 and 'associate editor' from issue #27. He was joined by contributing editor David Fideler, and subsequently (also as co-associate editor) by Paul Sieveking (#28— ) and Valerie Thomas (#31–32). Issue #20 announced that Kay Thompson (a staff member of "Ley Hunter" magazine, then under the editorship of Paul Devereux, with whom "FT" shared an address for several issues) would be helping to type parts of subsequent issues to further delegate the burden from Rickard. He, Moore and Sieveking were also later joined editorially by author Mike Dash (who is mentioned as particularly overseeing the publication of scholarly occasional papers), before Moore moved from full editorial to largely correspondent duties for a dozen issues after #42, returning as a contributing editor in Autumn 1990 (#55). The four — Rickard, Sieveking, Dash and Moore — are often collectively referred to as "The Gang of Fort," after the Gang of "Four".