You don't hear much about the legendary marsupial tiger of north Queensland, but it was all the rage in the first half of last century, and even had a semi-official status. It all began with letters to the Zoological Society of London in 1871, after which anecdotes accumulated, until they were collected in 1926 by Albert S. Le Souef and Harry Burrell in The Wild Animals of Australasia. The former came from a prominent zoological family, and was one of the founders of Taronga Park Zoo, while the latter was a naturalist most famous for his work with the platypus. Their material was subsequently republished by Ellis LeG Troughton, Curator of Mammals at the Australian Museum in Furred Animals of Australia, which continued in print until at least the early 1970s. Both books recorded the yet undescribed species as a large cat-like animal, presumed to be a marsupial, of a fawn colour, with black stripes which, unlike the thylacine's, do not meet on the back, and a short face similar to a cat's. Its height was estimated at 18 inches at the shoulder, with a length of five feet, including a long tail. For reference, this is the bottom of the size range for female leopards.
As these two publications were the major reference material for Australian mammals for nearly fifty years, they carried a lot of weight. Unfortunately, being popular works, they bore no citations, so one is left to wonder where the anecdotes came from. Did they appear in earlier, independent publications, or were the authors informed by private correspondence received in their professional capacity? I do not claim to have reached the original sources. However, with the help of Trove, I think I have got partway there.