Other source of information include

• MIT AI Memo 628: Chaosnet, by David A. Moon (webified here)
• A discussion in comp.protocols.tcp-ip
• Chaosnet support in bind9, the standard DNS server
• Local Networking at the M.I.T. Computer Laboratories: A User's View, by Marek W. Lugowski, Indiana University Computer Science Department Technical Report 173, 1985. Local copy (OCRed).
• A Short History of Chaosnet, by TwoBitHistory, Sep 2018.
• Various things on Github.