Just thought I would mention, that one of our very own - LS - has referenced this work "The American Newspaper" in not one but two at least two of his great books.
It's that important to consider reading. Now, "The American Newspaper" in a much easier to consume listening format.
https://en.wikipedia.org/wiki/The_American_Newspaper
This is for sure something that can be useful for you and the rest of the team you work with.
A very good source on America’s news papers/media is Jim Kuypers, “Partisan Journalism,” and the sources I cite in my notes for the books you provide.