Marion Sinclair was a music teacher at Toorak College, a girls' school in Melbourne she had attended as a boarder. In 1920, she began working with the ...
"Kookaburra" was written more than 70 years ago by Australian teacher Marion Sinclair for a Girl Guides competition. Sinclair died in 1988, but publishing company Larrikin Music which now holds the copyright for "Kookaburra" filed a lawsuit in 2009.