(YODOGAWA MARU, prewar)
IJN YODOGAWA MARU:
Tabular Record of Movement
© 2016-2017 Gilbert Casse and Peter Cundall
27 September 1938:
Yokohama. Laid down by Mitsubishi Jukogyo K.K. shipyard for Toyo Kaiun K.K. as a 6,450-tons cargo ship.
16 February 1939:
Launched and named YODOGAWA MARU.
5 April 1939:
Completed and registered at Tokyo.
Chartered to Mitsui Bussan K.K.
27 January 1940:
Calls at Rangoon, Burma (Now Yangon, Myanmar) ~ Madras, India and Persia.
2 September 1941:
Mukojima. Conversion to a collier/oiler begins at Mukojima Dock K.K. shipyard.
20 September 1941:
Requisitioned by the IJN and registered that same day as an auxiliary collier/oiler attached to the Kure Naval District with Kure as homeport under Navy’s instruction No. 1093. Assigned directly to the Combined Fleet as an auxiliary collier/oiler (Ko) category. Captain (Reserve) Naito Jun is appointed supervisor. 
15 October 1941:
The conversion is completed.
Loads 6,000-tons of coal, 93-tons of lubricating oil, 1,900-tons of diesel oil and 60-tons of aviation gasoline to be delivered to forward bases.
22 November 1941:
E 29 November ~ 5 December 1941:
Operates in the South China Seas area.
4 December 1941:
At 0600, departs Samah (Hainan Island, China).
8 December 1941:
Arrives at Mako, Pescadores. Departs later.
11 December 1941:
Supplies provisions to 2nd DesDiv vessels.
24 December 1941:
At Lingayen Gulf, Luzon, Philippines. Comes alongside and supplies coal to auxiliary gunboat NAMPO MARU. Later that same day, refuels auxiliary gunboat KISO MARU.
26 December 1941:
Departs Lingayen Gulf.
28 December 1941:
Arrives at Takao, Formosa (now Kaohsiung, Taiwan).
1 January 1942:
3 January 1942:
Arrives at Camiguin Island, Philippines. Departs later that day.
8 January 1942:
Arrives at Davao, Mindanao. Later that day comes alongside and supplies coal to auxiliary gunboats MANYO and TAIKO MARUs.
13 January 1942:
15 January 1942:
Arrives at Tarakan.
18 January 1942:
24 February 1942:
At Balikpapan, Borneo. Supplies coal to auxiliary gunboat TAIKO MARU.
27 February 1942:
Departs Balikpapan and arrives at Adang Bay, Borneo later that day.
28 February 1942:
Departs Adang Bay.
1 March 1942:
Arrives off Takisung, Borneo.
2 March 1942:
Departs Takisung waters with TAIKO and IMIZU MARUs escorted by minelayer ITSUKUSHIMA and 31 DesDiv destroyers.
3 March 1942:
Arrives at Kragan, Java. From 0830 supplies stores and fuel oil to light cruiser JINTSU and destroyer HATSUKAZE.
6 March 1942:
Comes alongside and supplies coal to auxiliary gunboat TAIKO MARU.
8 March 1942:
Departs Kragan, Java.
17 March 1942:
Arrives at Takao.
25 March 1942:
E 29 March 1942:
Arrives at Balikpapan.
6 April 1942:
7 April 1942:
Arrives at Macassar, Celebes (now Sulawesi).
8 April 1942:
Comes alongside and supplies coal to auxiliary gunboat OKUYO MARU.
10 April 1942:
Assigned to Vice Admiral Takahashi Ibo’s (36) Southwest Area Fleet.
23 April 1942:
3 May 1942:
Transits Bungo Suido with ammunition ship NICHII MARU. Later that day arrives at Kure.
10 June 1942:
18 June 1942:
Arrives at Truk, Central Carolines. Supplies 250-tons of coal to auxiliary hospital ship ASAHI MARU.
19 June 1942:
Supplies 350-tons of coal to auxiliary hospital ship ASAHI MARU.
E July 1942:
15 July 1942:
Arrives at Muroran, Hokkaido. Departs later.
14 August 1942:
At 1400, departs Mako in convoy No. 249 also consisting of four unidentified merchant ships escorted by torpedo boat HAYABUSA.
19 August 1942:
At 1000, arrives at Mutsure.
11 September 1942:
Scheduled to end supply missions to Navy vessels after the end of current supply mission, under Combined Fleet instructions No. 282.
21 September 1942:
Arrives at Yokohama.
25 September 1942:
Captain Naito is relieved by Captain Takeda Kiyogo (38).
28 September 1942:
Transfers from Yokohama to Yokosuka.
2 October 1942:
4 October 1942:
Arrives at Tokuyama, Yamaguchi Prefecture.
9 October 1942:
10 October 1942:
Arrives at Kure.
12 October 1942:
20 October 1942:
Arrives at Truk.
25 October 1942:
29 October 1942:
Arrives at Rabaul, New Britain. Departs later in early November.
1 November 1942:
Currently assigned to troop and supplies missions to the Southeast Force Bases.
10 December 1942:
Arrives at Yokosuka.
1 January 1943:
Currently assigned to transport Aviation personnel and supplies.
30 January 1943:
31 January 1943:
Arrives at Yokkaichi, Mie Prefecture.
3 February 1943:
14 February 1943:
Currently assigned to Airforce Base to transport aviation supplies under Airforce Base secret instruction No. 19.
28 March 1943:
Arrives at Yokosuka.
6 April 1943:
7 April 1943:
Arrives at Nagoya.
9 April 1943:
10 April 1943:
Arrives at Yokosuka.
12 April 1943:
Departs Yokosuka and arrives at Kisarazu, Chiba Prefecture later that same day.
14 April 1943:
Departs Kisarazu in convoy No. 3414A also consisting of auxiliary seaplane tender KUNIKAWA MARU and possibly others with unknown escort.
25 April 1943:
At 0720 departs Truk with KUNIKAWA MARU escorted by destroyers UMEKAZE and HAGIKAZE.
28 April 1943:
At 0500 arrives at Rabaul.
9 May 1943:
At 1530, departs Rabaul for Palau, Western Carolines in convoy R-09 also consisting of auxiliary storeship CHOKO MARU, IJA transports YAMABUKI, FUKKO, NIKKI and TATEISHI MARUs and civilian cargo ship (C-AK) BANSHU MARU No. 15 escorted by subchasers CH-23 and CH-38. The convoy sails at 9 knots.
11 May 1943:
NE of Manus, Admiralties. At 0730, LtCdr (later Rear Admiral) Edward C. Stephan's (USNA ’29) USS GRAYBACK (SS-208) fires a spread of six torpedoes and scores two hits on YODOGAWA MARU. She is set afire and sinks at 00-40N, 148-55E with the loss of two of her crew.
15 July 1943:
Removed from the Navy’s list under instruction No. 1455.
 There were two categories of Kyutanyusen. (Ko) category with an IJN Captain as supervisor aboard and (Otsu) category without.
Thanks go to Gengoro S. Toda of Japan.
- Gilbert Casse and Peter Cundall.
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