The Australian Kelpie, or simply Kelpie, is an Australian sheep dog successful at mustering and droving with little or no guidance. It is a medium-sized dog and comes in a variety of colours. An extensive 30 hour search had failed to locate Mrs Henry, at which point search dogs were called in. Fresh out of training, Jackson located Mrs Henry alive within 45 minutes of being deployed. (Source Channel 7 News Perth) The ancestors of most Kelpies were British dogs known loosely as collies (sometimes spelled colleys). . For much of the 20th century and early 21st century it was claimed that kelpies were partly descended from dingoes. In 2019, a genomic study indicated that the kelpie had no dingo ancestry.The first dog known as a Kelpie was a black and tan female pup with floppy ears bought by Jack Gleeson about 1872 from a litter born on Warrock Station near Casterton, owned by George Robertson, a Scot.