Ha-19
| Country | Japan |
| Ship Class | Type A-class Midget Submarine |
| Builder | Kure Naval Yard |
| Laid Down | 1 January 1938 |
| Sunk | 7 December 1941 |
| Displacement | 46 tons standard |
Contributor: C. Peter Chen
Ha-19, a 46-ton Type "A" midget submarine, was built at Kure, Japan, in 1938. In November-December 1941, she was transported aboard the larger submarine I-24 to the waters off Pearl Harbor, where she was one of five midget submarines launched to participate on the 7 December Japanese raid.
A non-functioning gyrocompass prevented Ha-19 from entering Pearl Harbor. After many adventures, she went aground at Waimanalo, on the east coast of Oahu. The submarine and her pilot, Ensign Kazuo Sakamaki, were captured on 8 December. Ensign Sakamaki was the first Japanese prisoner of war taken by the United States during the Pacific War.
Ha-19 was salvaged and later sent to the United States' mainland, where she was featured at War Bond drives throughout the country. After the end of World War II she was exhibited for many years at Key West, Florida. In 1991, Ha-19 was moved to Fredericksburg, Texas, where she remains on display at the Admiral Nimitz museum.
Source: Naval Historical Center
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Captain Henry P. Jim Crowe, Guadalcanal, 13 January 1943





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