Ok. So I just needed to browse forum postings from top to bottom, instead of searching with “keywords.”
I found this post: http://ww.wp.xz.cn/support/topic/i-suddenly-cant-access-my-super-admin-account?replies=2. I followed the link to: http://halfelf.org/2013/recovering-your-cape/ and followed guidance for editing the user id in ‘site_admins’
Thanks to the WordPress community for the availability of real-time wonderful support to all users!