http://www.greyfriarsbobby.co.uk/tuckerbox.html
To pass time during rest periods the men would sing songs and tell tales about their exploits, making up doggerel verse and rhymes. It was at a halt on a river creek just north of Gundagai the legend of the The Dog on the Tuckerbox was born, in about 1850.
A bush yarn told of the hardship of a Bullocky, bogged down in mud, having a great deal of trouble, generaly fed-up, with the last straw being when his dog sat in, not on, his tuckerbox, ruining his change of a decent evening meal!
The legend of The Dog on the Tuckerbox was eventually immortalised by Jack O'Hagen with his popular song that extolled the spirit of the early pioneers with their dogs, who endured hardship and peril to ensure Australia's future, which also put the town of Gundagai, nestling at the foot of Mount Parnassus in the Murrumbidgee Valley on the world map.