Bryan Gibson (March 9, 1961 - February 10, 2014) was a game artist with over 60 classic Traveller credits. He had lived in Green Cove Springs near Jacksonville, Florida. Gibson had previously served as an artilleryman and military policeman in the Army National Guard and as a security specialist from 1990 until 1996 with the United States Air Force. He died of viral pneumonia in Jonesboro, Arkansas.
From the Traveller RPG Wiki on wikia.com:
Bryan Gibson is an artist, having produced work for MegaTraveller, TNE, T4 and T20. Along with Rob Caswell, many people feel Bryan's work is definitive of the vision of Traveller.