John Lewinski was a Human, a Starfleet officer serving in late 24th century. Born on Earth, Captain Lewinski was best known for his final assignment, as commanding officer of the USS Monitor.
Lewinski enjoyed 22nd century Andorian blues, and knew a bit about automobiles. (ST novel: The Return)
Lewinski was known to comment about cowboys, his "noble ancestors", before ordering his starship on a dangerous flight heading with a proud "yee-ha!" In the year 2378, he died in the line of duty, after warning the galaxy about the Totality. (ST novel: Captain's Peril)