Submarine I-9

[Pby001]

Does anyone have access to the deck log for Japanese submarine I-9? Specifically, for its Aleutian patrol for June 1942? I need its deck log for June 17th 1942. My father depth bombed a submarine tracking the USS US Grant troopship near Cherni island (near Cold Bay) on that date. I have attached the USS US Grant deck log for that day and the VP-42 war diary entry.

[ijnfleetadmiral]

The deck log was more than likely lost with I-9 when she was sunk with all hands in June 1943, unless it was transferred ashore after each patrol.

[Pby001]

I have been in contact with JACAR but have not been able to find someone to search and translate. I do not know if the Japanese had a single deck log like in the US Navy or some other documents. I wish James Sawruk could help me but I think he passed away in 2019 in PA. He sent me some translated seaplane logs for the Aleutian battles in June 1942 back in 2003 (Kamikawa Maru floatplane ops).

[fontessa]

I have been in contact with JACAR but have not been able to find someone to search and translate. I do not know if the Japanese had a single deck log like in the US Navy or some other documents. I wish James Sawruk could help me but I think he passed away in 2019 in PA. He sent me some translated seaplane logs for the Aleutian battles in June 1942 back in 2003 (Kamikawa Maru floatplane ops).

Most submarine deck logs were abandoned after the war.
Japanese Wiki says as the below;
1942年5月15日、伊9は横須賀を出港。17日に大湊に到着。19日に大湊を出港し、キスカ島へ向かった。24日夜明け、キスカ島とアムチトカ島を航空偵察。26日0500、アダック島とカナガ島を航空偵察。6月6日からはアリューシャン列島周辺海域の哨戒を行う。8日からはコディアック島周辺海域を哨戒。6月15日、コディアック島の米軍施設を航空偵察。同日、伊9は商船2隻を攻撃したが、いずれも損傷を与えることができなかった。19日、北緯56度17分 西経146度46分の地点で米陸軍輸送船ジェネラル・W・C・ゴルカス(General W. C. Gorgas、4,636トン)を発見。浮上砲戦により同船を撃破した。30日に哨戒区域を離れ、7月7日に横須賀に到着した。
Google translation is;
On May 15, 1942, I-9 left Yokosuka. She arrived at Ominato on the 17th. She left Ominato on the 19th and headed for Kiska Island. At dawn on the 24th, she scouted Kiska and Amchitka. She reconnaissance on the islands of Adak and Kanaga at 0500 on the 26th. From June 6th, she will patrol the waters around the Aleushan Islands. She patrols the waters around Kodiak Island from the 8th. On June 15, she air reconnaissance of a US military facility on Kodiak Island. On the same day, I9 attacked two commercial ships, but neither could be damaged. On the 19th, she discovered the US Army transport ship General W.C. Gorgas (4,636 tons) at 56 ° 17'N and 146 ° 46'W. She destroyed the ship in a surfacing artillery battle. She left her patrol area on the 30th and arrived in Yokosuka on the 7th of July.

Other possible source is Watanabe Hiroshi's TRON, but it is not available now.

fontessa