Great stuff! It's a shame the paper is unknown, but then I suppose even if it was known, there might be none left anywhere to find. So we can think of it as adding to the mystery here!
I love, love, love this! Way back when (I think in the 1800s, but I'm just guessing), one of my ancestors went on a version of a walkabout, American style. He wrote in a journal the whole time and my mom has typed a bunch of it out. This could be him.