Call this a Memorial Day post. The second page has a bit to say about choice of shaving tackle: safety razor vs straight, cream vs soap, etc. Remember, "no man makes a good appearance if he needs a shave". Oddly there seems to be nothing about shaving brushes, but quite a bit about toothbrushes. And I now know how to use a poncho as a bathtub.
Click here: https://books.google.com/books?id=cNoDAAAAMBAJ&lpg=PA265&pg=PA265#v=onepage&q&f=false
Click here: https://books.google.com/books?id=cNoDAAAAMBAJ&lpg=PA265&pg=PA265#v=onepage&q&f=false