City of Baraboo

From the back cover:

CARGO: ONE CIRCUS
DESTINATION: THE STARS

Through the shakedowns, breakdowns, catastrophes and cataclysms, the circus had never failed to coax a chuckle out of a world badly in need of a laugh. But it was getting hard to turn a buck O'Hara's Greater Shows, and in 2142 it was the last stop of the bigtop. Or so said the corporate consensus.

But in John J. O'Hara's opinion, even if a flea-bitten excuse for an Earth had run out of room for the circus, there were plenty of other planets where an appreciative audience would be willing to pay for a top-rate, razzle-dazzle show!