The traveling baby appeared out of nowhere, in his own suitcase on the platform of the train station in Topeka.
No one knew what his name was, so they decided to call him Sam, after Samsonite, the brand of luggage in which he was traveling.
Sam was cared for by a local family, and this went fine for about a week or two. But then he started crying and wouldn't stop no matter what the family did. They knew then that Sam was full of wanderlust, and it was time for him to go traveling again. So they took him to the train station and put him on the next train to anywhere.