Conversation so far:
What sort of controversy did Eileen have?
wrote that no secret accomplice was needed as the information described in Garrett's seances were "either commonplace, easily absorbed bits and pieces, or plain gobbledegook.
Who wrote that?
Melvin Harris a researcher who studied the original scripts from the case.
What other controversies did she have?
In 1978, paranormal writer John G.
Fuller wrote a book claiming that Irwin had spoken through Garrett.
This claim has been questioned.

Question: Who questioned the claim?
Self-contained rewrite: Who questioned Fuller's claim that Irwin had spoken through Garrett?