Many of the songs by Don Henderson (1937-1991) need consideration, in my opinion. Many were well-known and frequently sung during the 60s, 70s, 80s. The National Library has details.
There's also Mike O'Rouke - from the Atherton Tableland.

Reading the list of songs to be included leaves me wondering if I've been somewhere else for 64 years. There are so few I've heard let alone been influenced by. That's not to say they aren't worthy songs. Guess I still don't understand the criteria.
Cheers, Joy