Australian police said on Wednesday they believe they have found the remains of a woman missing in the country's remote outback for weeks.
Mr Tran (pictured) and Mrs Hockridge went in a westerly direction after their vehicle got stuck while Miss McBeath-Riley headed in a northerly direction where she found a waterhole.
Ms McBeath-Riley said she was "worried to death" about her two friends who had meant to go towards the Stuart Highway, about 22 kilometres from where they separated.
Their ute was bogged in a sandy river bed 22km from the Stuart Highway.
Ms Hockridge's friend Phu Tran, 40, and her partner Tamra McBeath-Riley, 52, were both found and rescued on Tuesday morning and Sunday evening respectively.
Supt Pauline Vicary, from NT Police, said the pair had managed to find groundwater to drink, describing their survival as a "miracle".More news: Apple: new Russian phone sales legislation is 'equivalent to jailbreaking'
Ms Hockridge was last seen by Mr Tran at the boundary fence of a station south of Alice Springs two days ago, where the two had parted ways and he made a decision to follow the fence line.
Sarah Hockridge, who had travelled from her farm at Wave Rock in Western Australia, thanked everyone involved in helping them, singling out Detective Matt Hughes who was in constant contact.
"It may have been that she was exhausted and didn't feel like she could continue to go", she said.
Claire Hockridge had two daughters, Teagan and Tahlia, and a grandchild.
"We are really grateful to everyone who has supported us over what has been a truly agonising time. Mumma we love you".
Mr Tran was located by a pastoralist conducting bore runs in the area on Tuesday.More news: Vikings RB exits with shoulder injury vs. Seahawks
"Ted, the landowner near the cattle farm, he's a battler, he's got 1000 head of cattle and he dropped everything to make sure I was all right", he told reporters.
The group and Ms McBeath-Riley's dog, Raya, had been travelling from Alice Springs to go on a hike when they became bogged in the Hugh River.
Police will prepare a report for the coroner.
Temperatures reached about 40C in the area while the group was missing.
They stayed together for a harrowing few days with little food before splitting up to get help.
They had used up all their supplies of water, as well as some vodka drinks, biscuits and beef noodles they had in the vehicle.More news: Arizona Cardinals fail to show up against Los Angeles Rams