Help Adding a Blog Listing Page to a Bootstrap Theme

Hi,

I’m a somewhat experienced HTML and WP user, but completely new to Bootstrap. I have inherited a site done by others and want to add two items: 1) a blog listings page that shows a list of blog post excerpts and 2) a blog post page. I’m unsure how to start this process and would appreciate guidance.

When I add a new page called “Blog” and specify it as a “Posts Page”, the resulting page shows the content of my two test blog posts. It does not show post titles, dates, authors, etc. How do I modify this page to add these missing items and only show excerpts?

Live site link

Many thanks for your help,
Daryl