Jüri was born in 1740. Jüri's father was Niklus and his mother was Liis. His paternal grandparents were Tõnn and Mari; his maternal grandfather was Rein and his maternal grandmother is <Unknown>. He had four brothers and two sisters, named Jaan, Hindrik, Hans, Villem, Els and Anu. He was the third oldest of the seven children. He died at the age of 50 in 1790.