KG'day RoyH,

Your best starting point might be:

Rob Willis
National Library of Australia
Oral History and Folklore Collections
http://www.nla.gov.au/what-we-collect/oral-history-and-folklore
0268512687 0427911962

Try the web address to review what the NLA / OH$FC have up front ... and you might then contact Rob ... who worked with John Meredith in his later collecting periods ... post 'Duke' Tritton ... but Rob is a major player in getting out imprtant songs and music to the wider 'folk' world!

Regards,

Bob