BTW: A thing to remember is that symbolic links are not a wide spread when all of this was going on in the early 1980s, so they really did not have a lot to do with the /home idea.  In the case of symbolic links, Dennis had created them as part of V8, but 4.1BSD and System III (PWB 3.0) did not have the idea yet.   BSD 4.2 would later get them as part of FFS, but I don’t remember if 4.1c did (the kernel source was not in Warren’s browsable archive so I could not check).  

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