Human: What is the name of the town in New Mexico where the arrival of the railroad brought with it businesses, development and new residents? Assistant: 
The town in New Mexico where the arrival of the railroad brought with it businesses, development and new residents is Las Vegas, New Mexico. Among the notorious characters were such legends of the Old West as: dentist Doc Holliday and his girlfriend Big Nose Kate, Jesse James, Billy the Kid, Wyatt Earp, Mysterious Dave Mather, Hoodoo Brown, and Handsome Harry the Dancehall Rustler.