Alex's son Donald and wife Meredith moved to the homestead in 1964 and lived there with their children Caroline and Andrew. They started farming the Halwyn property on their own account in 1972.
"I remember my first time there, cooking for the shearing gang and a neighbour had to show me what I had to do," Mrs Crawford said.
Mr Crawford carried out a lot of development, including oversowing and top dressing and they ran about 4300 sheep and more than 200 cattle.
"We were one of the earlier ones to have a pastoral lease exchange.
"Donald was also an early adopter of electric fencing in the area.
"People were quite amazed and would ask how can we keep the sheep in when power goes off.
"He said they don't know the power was off.
"He was also one of the early ones to use top dressing."
At one point they ran Perendale sheep.
Mrs Crawford said they later changed to merinos, and then settled on halfbreeds, which were more suited to the climate.
Homer Contracting, of Waitahuna, did the development work in the hill country in the 1970s.
About the same time, contractor Ken Harliwich, of Roxburgh, built a road above the flats to access the paddocks by vehicle or motorbikes.
She said the Pastoral Lease Tenure Review process started in 1992.
"The Waipori snow tussock block was returned to the Crown and became part of the Te Papanui Conservation Park, which was opened in 2003."
Donald had been active with Federated Farmers, St John and the local Beaumont hall committee, and was also the chairman of the Waipori Pest Board and later the chairman of the South Otago Pest Board.
He was a keen supporter of the Otago Goldfields Heritage Trust Cavalcade and instigated the inclusion of the walking trails.
They decided to sell the 7452ha property in 1994 after Mr Crawford became ill. He died in 1995.
Mrs Crawford remained on the property for three more years, with Caroline and Andrew managing the farm, before she moved to Alexandra.
The property was broken up with the undeveloped tussock areas going to Doc and the balance was bought by Contact Energy, Earnslaw One, and the Trinity Foundation for dam access and forestry.
yvonne.ohara@alliedpress.co.nz