Wadjemup Salt Production History

History

This text details the history of salt production on Wadjemup (Rottnest Island), Western Australia. It highlights Robert Thomson as the first commercial harvester, the significant scale of production with Aboriginal prisoners from 1838 to c1950, the construction of a salt store in 1867, the development of refined salt production in 1869, and the eventual decline due to high costs of fuel. The salt store building remains as a significant 19th-century structure.

History Australia Industry

15 Questions Easy Ages 8+ Apr 22, 2026

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About this Study Set

This study set covers History through 15 practice questions. This text details the history of salt production on Wadjemup (Rottnest Island), Western Australia. It highlights Robert Thomson as the first commercial harvester, the significant scale of production with Aboriginal prisoners from 1838 to c1950, the construction of a salt store in 1867, the development of refined salt production in 1869, and the eventual decline due to high costs of fuel. The salt store building remains as a significant 19th-century structure. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Wadjemup Salt Production History study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What was Wadjemup historically the primary source of in Western Australia?

A Water
B Salt
C Timber
D Minerals

2 Who was the first person to commercially harvest Rottnest salt?

A An Aboriginal prisoner
B Robert Thomson
C A Fremantle merchant
D The island administrator

3 When did Aboriginal prisoners arrive on the island, marking the start of large-scale salt production?

A 1838
B 1867
C 1950
D 1869

4 How was the salt collected by the prisoners?

A By machine
B With nets
C With picks and shovels
D By evaporation

5 What was used to transport the collected salt to the Settlement?

A A boat
B A horse cart
C A train
D By hand

6 In what year was the building constructed to store salt before shipping?

A 1838
B 1869
C 1959
D 1867

7 To which port was the salt shipped from the island?

A Perth
B Albany
C Fremantle
D Bunbury

8 What type of salt was initially exported?

A Refined salt
B Table salt
C Crude salt
D Sea salt

9 When was a large salt-works erected to produce refined salt?

A 1838
B 1867
C 1869
D 1950

10 What was the weekly output of the salt-works in terms of high-quality salt?

A One ton
B Ten tons
C Half a ton
D Five tons

11 What factor eventually made salt production unproductive?

A Lack of labor
B Low market demand
C High cost of fuel wood
D Competition from other sources

12 What material was used to fire the salt boilers?

A Coal
B Gas
C Wood
D Electricity

13 In what year was the salt-works building demolished?

A 1867
B 1950
C 1959
D 2012

14 What is the significance of the remaining salt store building?

A It's a modern replica
B It's one of the most intact 19th-century buildings in the Settlement
C It was the original prisoner barracks
D It was used as a lighthouse

15 What was the building used for many years after the salt-works closed?

A A museum
B A tourist information center
C The offices of the island administrators
D A restaurant

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