The Train

On a certain train, the crew consists of the brakeman, the fireman, and the engineer. Their names in alphabetical order are Jones, Robinson, and Smith. On the train are also three passengers with corresponding names. Mr. Robinson lives in Detroit. The brakeman lives halfway between Detroit and Chicago. Mr. Jones earns exactly $20,000 a year. Smith once beat the fireman at billiards. The brakeman's next-door neighbor, one of the passengers, earns exactly three times as much as the brakeman. The passenger living in Chicago has the same name as the brakeman. What is the engineer's name?

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