The birth of Hisako Oka

Hisako Oka was born on January 5, 1923 in Santa Clara County, California.

Her father's last name is Oka, and her mother's maiden name is Sumikawa. If Hisako is still alive, she's now years old.

Her potential siblings include Hideo (born 1932), Mychico (born 1928), Masaki (born 1924) and Akico (born 1925).