Ed Charnock, Jr. was a member of Starfleet in the 24th century.
In 2353, Charnock was listed on a directory placard as having an office in room 45197 on Starbase 32. (TNG: "Violations")
Charnock was listed also as a Starfleet Advanced Technologies official on the dedication plaque of the USS Pasteur. (TNG: "All Good Things...")
In 2371, Charnock was listed among USS Voyager's crew on that vessel's crew manifest. (VOY: "Projections")