My grandfather was the son of Yoshito Tanaka born in Hilo, on the big island. Since I had been told since birth that Yoshito passed away before my grandfather, Ned Hind, was born I didnt know until I got the birth certificate that he existed. But if Yoshito passed away before his birth, how could he sign the birth certificate?
I have not gotten any further with this, but Yoshito was born in 1907 in Hilo. I have no record of him passing away.
hope this helps, if not sorry.