No, I mean did he keep his first name? Do you know where the family that adopted him live?
I would check old newspapers from that time. In many cases there was an article in a local paper about the orphan train that may have a list of the children. You can also check your state archives for adoption records, but that's not necessarily reliable because they might not have formally adopted him.
Have you been to the orphan train heritage society website?
http://www.orphantraindepot.com/