To use as the outline overview for the second board and possible other board designs map wise, I am having to look into copyright information and laws to ensure that I wont get told off down the line.
For example I have found the following:
That is from this website, and has said the following present on the page:
These public-domain maps are free. You can download the maps and use them for any purpose. You do not need to cite any attribution. To our understanding these maps are free of copyright because they were published before 1923, but use of these maps is at your own responsibility.