Good article, and much wisdom in not packing "the kitchen sink"!
Two other groups who may contribute to this lesson;
The Ozzie outback "swagman" The swag was the blanket roll, and the tuckerbag was the food carrier. The swag was on the back and tuckerbag hung in the front, they were joined near the shoulder strap so they balanced each other. So off to Waltz Matilda.
Remarkably similar is the North American Hobo, but he called the blanket roll the "bindle". An aka to "hobo" was "Bindle-stiff". I'm not sure what they called the haversack.