The National Library of Australia has fifteen entries for Clifton songs, though there is only an online scan of "On Board of the Kangaroo". They are:

As welcome as the flowers in May, or, The jolly miller
The adventures of Robinson Crusoe
It's not the miles we travel, but the pace that kills
Jones' Musical Party
Jemima Brown
On board of the Kangaroo
Paddle your own canoe [2 entries]
Pulling hard against the stream
Purely a matter of taste
Put the break on when you're going down the hill
True blue and seventy-two
Up a tree
Very suspicious [2 entries]

The majority of these songs have not been mentioned in the various threads on Clifton. I'm sure we'd appreciate transcriptions of the lyrics and dots. I'd be happy to transcribe melodies to ABC if someone provided me with scans.