Task 1 now complete. My blog declared 16 h-cards, one for each time my name was mentioned as author under the 15 blogposts on my front page, and 1 in the side bar. That last one is the only one I want to have, so I wanted to remove those underneath blogposts.
In the original theme I then hunted down the function used to show the author information for each posting, the sempress_posted_on function. This by viewing the various Sempress files in the WordPress internal Themes Editor. Then I copied that over to my child theme, and changed it. I simply removed the bits that turned my name into a link and all the h-card elements declared as classes around it. There’s no need to link to my author page here. I’m the only author, don’t have a profile page, and if you look at the ‘author archive’ it is a list of all the postings on this site.
I also cleaned up my single remaining h-card, adding a “p-note” class so that the blurb becomes part of the h-card, and making sure it lists the e-mail addresses correctly now.
The child theme I created will be useful for changing the way webmentions are presented on my blog as well.