J. Taylor, NTSC, was a 29th century doctor from the University of Copernicus who was a member of the Temporal Integrity Commission. Her work with the Commission included the development of the USS Relativity. (VOY: "Relativity")
This character was only mentioned in writing.
Taylor's name was seen on the dedication plaque seen on the bridge of the Relativity. She was named after Voyager crew member, Jeri Taylor.