From on-site panels:
When the penal settlement closed in 1877, tourists flocked to the area. In 1885 Port Arthur was renamed Carnarvon and the Commandant's House converted into the Carnavon Hotel. Over the next 70 years it was used as a boarnding house and private residence.
When this kitchen was added in 1854, by Commandant James Boyd, it only catered for a family of four or five. When operating as a hotel the kitchen would cater for between 12 and 30 guests. Most meals were plain English fare -- roasts, boiled meat, boiled vegetables and pudding. Meal preparation consumed much time and energy.
There a number of smaller storage rooms in this area. The light wasn't very good for photos, but I've included two them below.
The one below was labelled as "Store/pantry".
Buckeye Junior Cider Mill
I would like to find out more about these, but I haven't been able to other than the shelves rotate, and they seem to date from the 1930/40s period.
Trafalgar Cold Safe
More information: Coolgardie Safe