I'm very curious about this person. How do we know this is a hoax? Where did the hoax come from? The Philadelphia Inquirer article cited by the Dictionary of Art Historians doesn't seem to exist, I can't find it in newspapers.com
Topic on User talk:Pyfisch
I've posted an explanation at the talk page why this is a hoax. I hope it will be useful for future reference.
Excellent explanation, thank you for posting that.