Jeanne Marie Laskas’s article in The New York Times is absolutely wonderful:

“If you make him out to be a saint, people might not know how hard he worked,” Joanne said. Disciplined, focused, a perfectionist — an artist. That was the Fred she and the cast and crew knew. “I think people think of Fred as a child-development expert,” David Newell, the actor who played Mr. “Speedy Delivery” McFeely, told me recently. “As a moral example maybe. But as an artist? I don’t think they think of that.”

Go read it.