[Thoreandan]

Mentioning that you tracked him down and that he wants to be left alone, fine.

Throwing in "HEY EVERYONE YES THIS IS HIS REAL NAME AND HERE'S WHERE HE WORKS" - valid reporting of facts, but unnecessary, and explicitly contrary to the wishes you state. He's not Steinbeck and doesn't have a millionaire Peter Norton to help him stay private, but you have the power to redact those bits from your article, and it would likely be a nice action on your part to talk to your editors at Slate and do so. You found him. Great. Take credit, report on that in your story. But you don't have to "drop docs" on him. If you enjoyed his work, please talk to your editor.