J. Mees was a mid-22nd century Starfleet officer.
In 2151, Mees was noted on the dedication plaque of the Enterprise NX-01 for his work on the ship's spaceframe engineering. (Star Trek: Enterprise set artwork)
In January of 2155, Mees worked in (or as) ADCO at the Fleet Operations Center on Earth. Mees' office was located in room 1400. (ENT: "Demons" set artwork)
Mees' name was listed on the dedication plaque of the NX-01 and on directory listings seen on the set of "Demons".
Mees was named after staff series set decorator Jim Mees