I don't know what parts of early GCC were his, but http://en.wikipedia.org/wiki/Emacs#GNU_Emacs http://en.wikipedia.org/wiki/Emacs#GNU_Emacs suggests Emacs 13.x

I don't know what parts of early GCC were his, but http://en.wikipedia.org/wiki/Emacs#GNU_Emacs http://en.wikipedia.org/wiki/Emacs#GNU_Emacs suggests Emacs 13.x or 15.x source tarballs from around 1985 would be mostly his own work. I don't know whether they'd still be around, though. The oldest I can find at a glance is http://ftp.gnu.org/pub/old-gnu/emacs/emacs-18.59.tar.gz http://ftp.gnu.org/pub/old-gnu/emacs/emacs-18.59.tar.gz from 1992, and I don't know how many other contributors there had been at that point.