from the "Round Rects Are Everywhere!" story from spring of 1981:

https://www.folklore.org/StoryView.py?story=Round_Rects_Are_Everywhere.txt

In the very first line, something I missed before: Bill Atkinson, one of the most productive and valuable contributors of all time to Apple's SDE efforts, worked mostly at home, coming in to the office only when necessary. 1981.