That person is William Davidson. He seems, as Llewellyn put it, "born to the job in a big way." He is 54 and has long frizzy hair that he keeps pulled back in a ponytail. He has deep-set eyes, a detail-oriented thoughtfulness and steadiness, a patience the job often demands. Also, he has a love and understanding of trains, model and otherwise. He grew up in Bronzeville and Englewood, the son of a CTA train instructor/conductor. "I used to spend every Saturday with him on the 'L,'" Davidson said. "I grew up on the rails, and according to my parents, I got my first train set at 2. I liked the 'L' as a whole and wanted to work for the CTA, but I never wanted to jump through political hoops or, as I was told, get to know my alderman to get a CTA job. So I went to Roosevelt, studied computer science." He worked in IT at the Tribune for 12 years before being hired by the MSI.