The Honourable Berthold Herbert Teusner was born at Rosedale, South Australia on 16th May 1907. Educated at Tanunda private and public schools, Gawler High School, Immanuel College and University of Adelaide where he won the Barr Smith Prize for classical Greek and obtained the degree of Bachelor of Laws.
Married Viola H Kleemann on 12th May 1943.
A member of the District Council of Tanunda for 20 years and the Chairman for 17 years and Justice of the Peace since 1939.
He represented the electorate of Angas in the South Australian House of Assembly for 26 years and holding the position of Speaker in the South Australian Parliament for 6 years and Deputy Speaker and Chairman of Committee for 6 years.
He was an Honorary Associate Life Member of SA Branch of Commonwealth Parliamentary Association and represented South Australia at the Association's conference in Jamaica in 1964.
- Member of Board of Governors of Adelaide Botanic Gardens for 14 years
- Member for South Australian National Fitness Council for 17 years
- Member of Board Management of Immanuel College Council for 38 years
- Member of Nuriootpa High School Council for 14 years
- Member of South Australian Transport Control Board for 3 years
- Member of Tanunda Institute Committee for 40 years
- Member of Tanunda Liedertafel for 43 years
- Chairman of each of the Advisory Comittees of Royal Adelaide and Queen Elizabeth Hospitals, 1962-1965
- Awarded Badge of Merit by SA Bands Association in 1969
Title of "Honourable" bestowed by Her Majesty in 1962 and in Her Majesty's Year's Honours 1972 was made a Companion of the Most Distinguished Order St Michael and St George (CMG)
