Emergencies and World Disasters
The Ten Who Vanished: HMCS Integrity's Unsolved Disappearance
22 min•8 augusti 2026
Om avsnittet
The Ten Who Vanished: HMCS Integrity's Unsolved Disappearance
A colonial-built ship launched in January 1804, 59.75 tons and tested by filling her hull with water, disappeared with ten men after leaving Port Jackson on 20 June 1805 - not a wreck, body, or message was ever found. How did a vessel that had survived violent storms, a broken rudder and solo crossings of Bass Strait vanish without a trace?
In this episode, we trace the ship's construction, her early voyages, and the circumstances of her final departure under a white flag of uncertain legality to ask what could erase an entire vessel and crew from the Pacific record. What sequence of decisions and events led ten men aboard Integrity to vanish into history?
Person: Lieutenant John Houstoun
Person: Acting Lieutenant Charles
Date: Launched 13 January 1804
Date: Departed Port Jackson 20 June 1805
Location: Port Jackson
- Integrity measured fifty-nine and three-quarter tons when launched at King's Dockyard.
- Six men - two shipwrights, two apprentices, two sawyers - built Integrity over thirteen months.
- Integrity filled her hull with water as a test before launch and the hull held.
- Integrity sheltered and repaired after crossing Bass Strait alone, reaching Port Jackson on 5 November 1804.
- A clerk recorded in a colonial ledger in mid-1806: "Gone to Valparaiso ... Not returned."
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© 2026 OBOMEDIA. All rights reserved.
This episode and its content (audio, text, and related materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, without prior written permission from OBOMEDIA is prohibited. For permissions, licensing, and business inquiries: [email protected].
A colonial-built ship launched in January 1804, 59.75 tons and tested by filling her hull with water, disappeared with ten men after leaving Port Jackson on 20 June 1805 - not a wreck, body, or message was ever found. How did a vessel that had survived violent storms, a broken rudder and solo crossings of Bass Strait vanish without a trace?
In this episode, we trace the ship's construction, her early voyages, and the circumstances of her final departure under a white flag of uncertain legality to ask what could erase an entire vessel and crew from the Pacific record. What sequence of decisions and events led ten men aboard Integrity to vanish into history?
Person: Lieutenant John Houstoun
Person: Acting Lieutenant Charles
Date: Launched 13 January 1804
Date: Departed Port Jackson 20 June 1805
Location: Port Jackson
- Integrity measured fifty-nine and three-quarter tons when launched at King's Dockyard.
- Six men - two shipwrights, two apprentices, two sawyers - built Integrity over thirteen months.
- Integrity filled her hull with water as a test before launch and the hull held.
- Integrity sheltered and repaired after crossing Bass Strait alone, reaching Port Jackson on 5 November 1804.
- A clerk recorded in a colonial ledger in mid-1806: "Gone to Valparaiso ... Not returned."
To listen to this podcast ad-free and access premium episodes, try our subscription with a 14-day free trial at obomedia.com.
© 2026 OBOMEDIA. All rights reserved.
This episode and its content (audio, text, and related materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, without prior written permission from OBOMEDIA is prohibited. For permissions, licensing, and business inquiries: [email protected].
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