There is a inquest online in the Tasmania archives for the following person but there is no information on it such as age etc to help indicate if he is your fella.
Inquest Details
Henson, John
Age
Ship or Native Place
Death Date
Inquest Date 29 May 1843
Verdict
AGD Reference
POL 709 Reference
SC 195 Reference SC195/1/11 Inquest 894