[the OlLine Rebel]

Start with this. Directly deals with your article.

https://www.animals24-7.org/2021/11/21/review-pep-the-story-of-a-brave-dog/

I have to dig in my old bookmarks for a really good site about history and direct sources. It was a very long read, but excellent.

[algore]

A very good article, Especially the story of Pep

thanks so much