Supplementary to 'Visit to Bentinck and Mornington Islands, Queensland by Norman B. Tindale. 1960' (AA 338/1/23)
'Mornington I. Qu Oyster pick stone (mariwu) and stick (tjilka)
in use gathering oysters. Old William at work were-djara W side MI 4 June 1960
journ. p. 309'