Answer the question at the end by quoting:

Born in Scotland on 15 June 1792, he was son of John Mitchell of Carron Works and was brought up from childhood by his uncle, Thomas Livingstone of Parkhall, Stirlingshire. On the death of his uncle, he joined the British army in Portugal as a volunteer, at the age of sixteen. On 24 June 1811, at the age of nineteen, he received his first commission as 2nd Lieutenant in the 1st Battalion 95th Rifles (later the Rifle Brigade / Royal Green Jackets). Utilising his skills as a draughtsman of outstanding ability, he was occasionally employed in the Quartermaster-General's department under Sir George Murray.
In 1831 a runaway convict named George Clarke, who had lived with Aborigines in the area for several years, claimed that a large river called Kindur flowed north-west from the Liverpool ranges in New South Wales to the sea. Charles Sturt believed that the Murray-Darling system formed the main river system of New South Wales and Mitchell wanted to prove Sturt wrong. Mitchell formed an expedition consisting of himself, assistant surveyor George Boyle White and 15 convicts who were promised remission for good conduct. Mitchell took 20 bullocks, three heavy drays, three light carts and nine horses to carry supplies, and set out on 24 November 1831 to investigate the claim. On reaching Wollombi in the Hunter Valley, the local assistant surveyor, Heneage Finch, expressed a desire to join the expedition. He had established his credentials by surveying a route from Sydney to Wollombi, so Mitchell approved his request, provided he obtained extra supplies and men, and he followed along later.  The expedition continued northward, climbed the Liverpool Range on 5 December, and made Quirindi on 8 December. Shortly afterwards Finch arrived but inexplicably had not brought provisions, so Mitchell immediately sent him back to get them. By 11 December the expedition had reached Wallamoul Station near Tamworth, the northern extent of white settlement at the time.  Mitchell continued his northward push into new territory, taking local Kamilaroi people to assist in finding water and to express his peaceful intentions. By early January 1832 he was in the vicinity of the present town of Narrabri, reached the Gwydir River in mid-January, and found the Barwon by the end of the month, where he set up camp. Mitchell left the main party and made a reconnaissance down the Barwon until he found its junction with the Gwydir. After Mitchell returned to the main camp, Finch arrived with tragic news. He had been travelling with three convicts and provisions but, because of a shortage of water, the group had separated. He left two men behind while he attempted to locate the main expedition. Having failed to do that, on the second day he returned to the campsite to discover that it had been ransacked. Supplies were scattered and beneath the wreckage were two dead men. The immediate effect was that Mitchell decided to abandon the expedition and return south. The party reached the Gwydir on 8 February and was near the site of the attack on 17 February. Mitchell buried the two bodies and salvaged some equipment. Once back at Wallamoul, Mitchell placed White in charge of the main party, while he returned hastily to Sydney. He was satisfied that there was no truth about the river Kindur claimed by Clarke. Fourteen years after the attack, Mitchell revealed that the convicts had indulged in sexual relations with Aboriginal women.

Was he correct in his belief?

The immediate effect was that Mitchell decided to abandon the expedition and return south.



Answer the question at the end by quoting:

Orchestral Manoeuvres in the Dark (OMD) are an English electronic music band formed in Wirral, Merseyside in 1978. Spawned by earlier group The Id, the outfit is composed of co-founders Andy McCluskey (vocals, bass guitar) and Paul Humphreys (keyboards, vocals), along with Martin Cooper (various instruments) and Stuart Kershaw (drums); McCluskey is the only constant member. OMD released their debut single, "Electricity", in 1979, and gained popularity throughout Europe with the 1980 anti-war song "Enola Gay".
The eponymous first album (1980) showcased the band's live set at the time, and was basically recorded by the Humphreys/McCluskey duo, although included some guest drums from Id drummer Malcolm Holmes, and saxophone from Wirral musician Martin Cooper. It had a simple, raw, poppy, melodic synth-pop sound. Dindisc arranged for the song "Messages" to be re-recorded (produced by Gong bassist Mike Howlett) and released as a single (right) - this gave the band their first hit. Dave Hughes, a founder member of Dalek I Love You who joined OMD in early 1980, is featured in the "Messages" video.  A tour followed, Winston the tape recorder was augmented with live drums from Malcolm Holmes, and Dalek I Love You's Dave Hughes on synths. Hughes then left OMD in November 1980, replaced by Martin Cooper.  The second album Organisation (a reference to the band which preceded Kraftwerk, founded by Kraftwerk's original members Florian Schneider-Esleben and Ralf Hutter) followed later that year, recorded as a three-piece with Humphreys, McCluskey and Holmes. It was again produced by Howlett, and had a rather moodier, dark feel. The album spawned the hit single "Enola Gay", named after the plane that dropped an atomic bomb on Hiroshima. The song was intended to be included on the debut album, but was left out at the final selection. The tour for this album had a 4-piece band line-up, with saxophonist Martin Cooper (another Dalek I Love You alumnus) recruited for keyboard duties. In early 1981, Record Mirror named OMD as the fourth-best band of 1980; NME and Sounds both named the group as one of the 10 best new acts of that year.  Howlett then presided over the recording of a further hit single, "Souvenir", co-written by Cooper & Humphreys. It ushered in a lush choral electronic sound. The song also became OMD's biggest UK hit to date. In November 1981, their most commercially successful album was released in the UK and Europe - Architecture & Morality. The group went into the studio with Richard Mainwaring producing. Cooper then temporarily dropped out and was replaced by Mike Douglas, but this change was reversed by the time the album was released and a tour embarked upon. The album's sound saw OMD's original synth-pop sound augmented by the Mellotron, an instrument previously associated with prog rock bands. They used it to add very atmospheric swatches of string, choir and other sounds to their palette. Two more hit singles "Joan of Arc" and "Maid of Orleans" (which became the biggest-selling single of 1982 in Germany) were taken from the album. "Joan of Arc" and "Maid of Orleans" were originally both titled "Joan of Arc"; the name of the latter single was changed at the insistence of the publishers and to avoid confusion. It became "Joan of Arc (Maid of Orleans)" and later simply "Maid of Orleans".  In 1983 the band lost commercial momentum somewhat, with the release of their more experimental Dazzle Ships album, which mixed melancholy synth ballads and uptempo synth-pop with musique concrete and short wave radio tape collages. It was recorded by the 4-piece Humphreys/Holmes/Cooper/McCluskey line-up, and produced by Rhett Davies. Its relative commercial failure caused a crisis of confidence for Humphreys and McCluskey and brought about a deliberate move towards the mainstream.

Did they perform with any other bands or artists during this time?
The tour for this album had a 4-piece band line-up, with saxophonist Martin Cooper