I am sending the rest of the lyrics as I remember them; maybe that will clue someone to fill in the gaps.

I DO APPRECIATE ALL THE CONTRIBUTIONS...It is not Giddyup Napoleon; I believe the name was just "Napoleon" or "The Old Milk Wagon Horse".

Anyway, this is what I remember:

I had a horse I called Napoleon,
All on account of his bony parts;
(??He was bred in old Kentucky??)
??_________________?? and off he'd start.

He was so thin, you could see right through him,
Hair just as fine and as smooth as silk -
Hitched him up to the old milk wagon,
Taught him to stop when I hollered 'milk' !

One fine day while I was driving,
'Long came a Jay with a rig so neat,
??__________________??
We'll have a race right down the street."

??__________________??
??__________________??
Til someone hollered "milk"
and I lost the race.

It honestly seems like there is another verse in there somewhere, because it seemed like we as kids hollered 'milk' at least three times or more during the song.

Thanks for any more help!

Lori