Hatsuko Morioka
Hatsuko Morioka is a Japanese freestyle swimmer. She participated in two Olympic Games with Hideko Maehata, both of whom were from the same area, and Moriaka competed the individual 400 m and 4 × 100 m relay events at the 1932 and 1936 Summer Olympics with the best result of fifth place in the relay in 1932.
