Música: Frank Churchill
Letra: Ned Washington

Casey Junior's comin' down the track
Comin' down the track with a smoky stack
Hear him puffin', comin' 'round the hill
Casey's here to thrill every Jack and Jill

Every time his funny little whistle sounds
Everybody hurries to the circus grounds
Time for lemonade and Cracker Jack
Casey Junior's back
Casey Junior's back