As is so frequently the case, you learn about someone's claim to fame in their obituary. I had no idea that a furniture maker from upstate New York coined the term "director's chair," nor that it got its name as late as 1954. But thems the facts according to an Associated Press article.
Henry Vanderminden III, who has died at the age of 83, coined the term when he noticed that movie director's favored his family company's iconic folding wooden chairs. Vanderminden joined his family's company, Telescope Casual Furniture, after serving during WWII.
Link to AP obit.