I did notice that, but there must be some connection between the two. The book literally reads like the Hawk Vittles menu, with the same eclectic recipes (Packers potatoes, Sierra spaghetti, Cowboy pasta, North African Stew, Shrimp Whimsy). Even the whimsical names are the same (eg. Some like it hot bean spread).
Interesting that neither acknowledges the other. If you like a particular Hawk Vittles meal, I guarantee you will find the recipe in this book.