Donald Dennison, husband of Waihemo Community Board chairwoman Kathy Dennison, was the man killed on a rural East Otago property on Saturday.
Mr Dennison, 61, and Mrs Dennison were married for 35 years and had three children.
It was believed Dennison lost control of the 4WD vehicle he was driving on rough terrain and it crashed down a 200m bluff.
He had left the house around 7.45pm to spray gorse on a leased block in the Trotters Gorge area north of Palmerston.
"This was a new block — he had always wanted to have a bit of land," Kathy Dennison said.