Source: 1996 Kido Yearbook
Is the link to Yasui Sanchi right? That one was ten years older than Shuwa. Could it be another with the same name?
Charles Well, no. I left that unresolved because of difficulties I had with relating the name in the Yearbook with John Fairbairn's names book. Someone else has leapt in rather overconfidently.
John Fairbairn I think you'll find it's a misprint for Sanei. But the Kido listing looks dodgy anyway. It purports to limit itself to Meiji or later players yet lists Shusaku, and gives a false impression in that Shuwa had quite a few more pupils, live-in no less, rather more reliably, but still not completely, listed in Zain Danso.
Also