Conversation so far:
What is Vortex and Ed the Happy Clown?
Vortex Comics publisher Bill Marks picked up Yummy Fur as a regular, initially bimonthly comic book.
When did the comic start?
1986.
When did the comic end?
He brought Ed to an abrupt end in Yummy Fur #18 to turn to autobiography.

Question: Did Brown collaborate with anyone on the comics?
Self-contained rewrite: Did Brown collaborate with anyone on Vortex and Ed the Happy Clown?