Certainly not. The first emacs was created for the TECO editor on ITS by various people. It was further developed and maintained by RMS. Gosling's emacs came a few years later.
https://github.com/larsbrinkhoff/emacs-history has the details... there's some Gosling code (notably display.c with the skull-and-bones warning) in Emacs 13, but none that I can find in 15 and later.
