The canonical location of the jargon file is at jargon-file.org, which contains not just ESR's jargon-file, but also pre-ESR versions. Apparently he ripped a lot out that represented LISP and ITS culture, and spun some of the political aspects of it to conform more to his taste.
"rc-file" does not seem to be present pre-ESR, however: https://jargon-file.org/archive/jargon-1.0.3.dos.txt