There is a Henry Forse on the bdmindex who died in 1929 - parents given as Francis Forse and Elizabeth Williams - this may be the Henry in question.
The family is on the electoral roll at Prosperine
1913 Herbert Bowen Forse Bridget, Myrtle Creek Prosperine, housewife Forse Francis George, Mountain view farm, Prosperine, farmer Forse Henry, Myrtle Creek, Prosperine Farmer Forse, Henry James, Myrtle Creek, Prosperine Farmer Forse John Myrtle Creek, Prosperine Farmer Forse William Henry Myrtle Creek, Prosperine Farmer
Henry and Bridget (& some of the children) remain in 1919,and 1925. No sign of Henry in 1930 (but Bridget is still on the roll - living with 2 sons at Lillyvale, Bowen), so the 1929 death is probably him. If he left a will, it would include a copy of his death certificate. The online index, unfortunately only goes to 1915. Buying a will from the Qld archives is much easier and cheaper than buying a certificate from the registry.