Conversation so far:
What sort of controversy did Eileen J. Garrett have?
On 7 October 1930 it was claimed by spiritualists that Eileen J. Garrett made contact with the spirit of Herbert Carmichael Irwin two days after the R101 airship disaster.
Who wrote that the spirit of Herbert Carmichael Irwin spoke with Eileen J. Garrett?
In 1978, paranormal writer John G. Fuller wrote a book claiming that Irwin had spoken through Eileen J. Garrett.
What other controversies did Eileen J. Garrett have?
Who questioned Eileen J. Garrett's claim of contacting deceased Herbert Carmichael Irwin?
Magician John Booth analyzed the mediumship of Eileen J. Garrett and the paranormal claims of R101 and considered Eileen J. Garrett to be a fraud.

Question: What else did booth have to say?
Self-contained rewrite: What else did Magician John Booth have to say about Eileen J. Garrett's claim of talking to Herbert Carmichael Irwin?