A question directed to American Mudcatters:

The song "Rolling to Cairo Town (Roustabout Song)", which is in the DT database, mentions Cairo Town in the chorus. I'm guessing that's the Cairo in Ohio. The only recording that I've heard of the song is by Australians, "The Roaring Forties". They pronounce it as Kay-row rather than, as we do with the Egyptian city, K-eye-row.
Which is correct for the USA town?