William Mairson was a 23rd century Human man. Mairson was enlisted as a Starfleet Marine, in the 2280s decade holding the rank grade private first class and serving on the Federation starship USS Niwen. Mairson's record noted his skills at marksmanship, personal combat, environmental suit operation, small unit tactics, zero gravity operations, planetary survival and security procedures. (FASA RPG module: Where Has All the Glory Gone?)