The birth of Sumiko Yokoi

Sumiko Yokoi was born on August 26, 1929 in San Joaquin County, California.

Her father's last name is Yokoi, and her mother's maiden name is Ishiwara. If Sumiko is still alive, she's now years old.

Her potential siblings include Hirokazu (born 1926) and Setsuko (born 1928).