Mizpeh, the author didn't say. That was disappointing. I called Time, and they didn't have info on how to reach him or anyone connected with him (I'd have to dig out the magazine to remember his name ... a few years have passed).
As is the case in life, other matters took my attention away. I don't doubt the reciting, but in the interest of transparency, the article did not disclose it. So as time permits, I dig.