How do I display a different group of photos with each blog post without uploading the photos to the Wordpress Media Library?
 I’m using Wordpress for my blog. The blog is sort of a diary. One blog per day. The post title is each day’s date, in the format yyyymmdd. For each blog post, I take 10-50 photos. All the photos are in a single folder on my server. Each photo is numbered sequentially (1 thru whatever) & the file name of each image is the date (yyyymmdd) concatenated with the numeric counter.
 I rather not upload all these photos into the Wordpress Media Library. (Or maybe I would upload just one photo per post.) When a visitor clicks on a link to view a post (of a particular day), I would like each photo to be displayed  at the end of the post content. Either in a carousel or a grid.
 I know that this is pretty straightforward if I would upload the photos into the WP Media Library, but that is what I’m trying to avoid.