Yoshihiro Hamaguchi was a Japanese freestyle swimmer.
He represented Japan at the 1952 Summer Olympics in Helsinki, Finland. There, he won a silver medal as a member of the 4 × 200 m freestyle relay team, alongside Toru Goto, Hiroshi Suzuki and... Wikipedia
Born: June 23, 1926, Kagawa, Japan
Died: 2011 (age 85 years), Tokyo, Japan
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