Who is Mr. Railroad?

Now that the Green Bay Packers’ season is done, talk around Wisconsin switches to baseball, and that means interviews with “Mr. Baseball” himself, Bob Uecker. Fans of all teams – not just the Brewers – can readily admire his expert play calling and longevity in the field. Even those who don’t identify themselves as baseball fans know him, thanks to his many appearances in movies and on late-night TV.
 
So who is "Mr. Railroad?” Nominations should consider somebody living who embodies the qualities of the hobby. There are lots of names I could throw out there, but I’m curious to know whom you, our readers, admire. Discounting the Trains’ office staff, post your suggestions in the comments below.
 
And, don’t forget, pitchers and catchers report in less than three weeks!