Edmund Albert "Ted" Colson (3 June 1881 – 27 February 1950) was a bushman, pastoralist and pioneer who achieved recognition as the first person of European descent to cross the Simpson Desert.
Prior to his 15th birthday in 1896, Colson and his father travelled by sea to Esperance, Western Australia, then walked 150 miles to the gold-rush district of Norseman.
Although a number of explorers had probed the Simpson Desert from the mid 1800s, including Charles Sturt and Peter Warburton, none had made a successful crossing on foot.
Cecil Madigan had made an aerial reconnaissance in 1929, which proved that the desert was composed of numerous parallel sand dunes, with no evidence of permanent water.
He had missed the corner post on the outward trip (by only 300 yards), but found it on the return journey and took photographs as it was still in good condition after 50 years since its placement.