(Here's a slightly longer answer, now that i have time to sit at the computer.)

Thank you all again. You have once more demonstrated your immense knowledgeableness and resourcefullness and helpfulness. :-) As i've come to expect.

It makes sense, Dinah being the cook. I'm not sure why i ever thought she was the train (i thought the "kitchen" was the boiler room). But i think i've seen at least one American animated short in which they featured this song with Dinah as the train. This could have been caused by ignorance or embarassment at the racial overtones of the name. Or it could be a false memory. :-) But Dinah has become a favourite name for trains in child stories.

So back to lurking. I have limited access to the Internet at the moment.

Many thanks,

glauber