Aloha,
This is Ed's cousin from Pearl City, HI. Unfortunately, I did not receive any info. The only info I have is the above location from Aunty Ne-san. I have a friend in Niigata so I might have them look it up. I know there are several Amaki surnames in Niigata. There is also a cousin Jo (Asano family) who used to visit HI back in the 1970s. I think there might be more info on the Asano family.