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    Dublon Island (Tonoas, Tonowas) Chuuk State (Truk) Federated States of Micronesia
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USN c1944

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Dick Williams 1982








































PacificWrecks.com
Dick Williams 1982

Click For Enalargement
Click For Enalargement
Dick Williams 1982

Location
Lat 07°22.36′N Long 151°52.30′E  Dublon Island in Truk Lagoon in Chuuk State (Truk) in the Federated States of Micronesia. Named "Dublon" by the Spanish. The Trukese name for the island is "Tonoas" or "Tonowas".

Prewar
The Japanese established Dublon Town, a large Japanese settlement with trade stores, restaurants and geisha houses as part of their colonization of the area.

Wartime History
Starting in November 1940, Japan developed Dublon Island into an Imperial Japanese Navy base, building a headquarters building, eight barracks, five garages and a hospital.

During November 1943, the Japanese Navy Fourth Fleet HQ was built a large central concrete building, plus three large and nine smaller buildings. Facilities were manned by the 41st Naval Guard Unit. Forth Fleet Hospital could care for 850 patients in 5 wards and 24 other smaller buildings. 12 Concrete water reservoirs, an ice house, dental clinic, pharmacy, three warehouses and research lab existed. Naval Construction Department included 10,000 men at its peak.

The main radio station of the five in the islands was located at Dublon, where several concrete receivers shelters and buildings were constructed. Forth Harbor Department was located on the southeastern part of the island near Dublon Town. It was 22 wooden buildings including repair shops, warehouses and barracks.

South Seas Development Company had docking facilities on the southwestern tip of the island. Its supply storage and fish cannery were commandeered by the Navy, and it became the Fourth Naval Dockyard. It was the main receiving area for the military. More warehouses and a refrigeration building, HQ, and a two story barracks were constructed. A thousand men worked here on ship repairs, mostly damage sustained to ships from American submarine attacks. The facility also had a 30 ton floating crane and 2,500 ton dry dock. Nearby was a sawmill, and small rail cars connected most of the buildings.

The Truk Transportation department loaded and unloaded supplies from ships. Since there were no docks for the larger ships, supplies needed to be ferried to the bigger ships. Truk's marine infrastructure was second rate, and was capable of properly servicing a modern Naval fleet. A derrick, carts, 40 trucks, barges, harbor craft, tugs and sampans were used for these purposes.

Japanese Army 52nd Division "Oak"
The Japanese Army 52nd Division were based at Dublon during November 1943 to January 1944. There were not enough buildings for the troops and they were forced to camp in tents, and in civilian houses and schools. These Army troops were cut off from supply after they arrived and had to rely on the Navy for supplies and equipment. They built most of the land based defenses on the islands.

American missions against Dublon
March 15, 1944 - May 27, 1945

Dublon Seaplane Base
Built by the Japanese

85th Submarine Base
On the western shore was the 85th Submarine base, constructed during May 1942. It serviced, supplied and did minor repairs to subs. Torpedoes were stored in caves and transported by rail car to the shore. Many different repair and barracks existed specific to submarines.

Japanese Grave Markers
Numberous markers on the island

Hospital
Built by the Japanese Navy during November 1940. hospital are easy to locate, as are water and fuel storage tanks, and signposts written in Japanese.

Dick Williams adds:
"Hospital where an American aviator POW met his end. He was kept in the room at the far right. Read his account in "Ghost Ships" Silander Manuel, a Mortlockese who taught me Trukese told me about him that they also slit his eyelids so that his eyes could never close again. This just before they killed him. That's what Richard, the orderly who went to Saipan to testify against the Japanese, told me they did with them.

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Last Updated
February 4, 2018

 

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