Robert Bloch's Redjac story was derived from his other work with the Jack the Ripper...including A Toy for Juliette in "Dangerous Visions", which Harlan Ellsion wrote a sequel to. It was Bloch's idea of an immortal RIpper that carried over into Wolf in the FOld.
Stephen Baxter wrote a story outline for Voyager that was never used:
As I point out in the link, there was reverse pollination there too, where Voyager actually inspired his collaboration with Arthur C Clarke.
I would also like to point out ST's first tale about the origin of the Transporter was written by David Brin in graphic novel form!! Forgiveness: