Sumiyoshi-ikka explained

The Sumiyoshi-ikka (住吉一家 "Sumiyoshi Family") is an affiliate of the Sumiyoshi-kai yakuza syndicate, based in Tokyo, Japan. ^[1] It was founded by a local Bakuto in the early Meiji era.^[2]

Notes and References

1. Web site: Delinquent Groups and Organised Crime - Hiroaki Iwai, 1962. 10.1111/j.1467-954X.1962.tb03079.x . 144625520 .
2. Book: Edelbacher . Maximilian . Corruption, Fraud, Organized Crime, and the Shadow Economy . Kratcoski . Peter C. . Dobovsek . Bojan . 2015-10-15 . CRC Press . 978-1-4822-5532-4 . 138 . en.