Who is Whitey Dumas from Goodbye, Darkness: A Memoir of the Pacific War and what is their importance? "Goodbye

Dumas is one of the original enlisted men in the author's intelligence section. A confidence man in civilian life, Dumas is well-equipped for military life. Jailed in Portsmouth, Dumas talked his way out by claiming to read and write Japanese. One enlisted, Dumas invented a series of nonsensical syllables and taught 'Japanese' lessons to his section. Dumas occurs in several of the minor incidents described in the memoir.