Coal was discovered at Jumbunna East in 1889 and a thriving town grew up to a peak in 1912. It then declined until the mine was closed in 1939. The railway line between Jumbunna & Outtrim was opened in Febraurya 1896. George Ruby was of Jumbunna at his marriage in March 1896 and his eldest daughter Edith was born there three months later. Their next child Vera was also born there in 1897 and he was listed in directories there from 1897 to 1900.
Research note: Joeph White. The History of the shire of Korumburra. Photocopy of relevant pages supplied by Joan Maries.