The couple had four children and adopted a fifth. She married her cousin Hideo Tanaka on 6 January 1922, although they did not meet before the wedding. She was the seventh of either eight or nine children (sources differ) born to Kumakichi and Kuma Ota. Kane Tanaka was born prematurely on 2 January 1903 in the village of Wajiro (now part of the city of Fukuoka), Fukuoka Prefecture, Japan.
