Dexter Ronald Kruger was born in Nundah, an inner suburb in the City of Brisbane, Queensland, Australia, on 13 January 1910. His parents were Albert Henry Kruger (1871–1959) and Matilda Otto (1878–1961), both of German descent. He had at least five siblings. He grew up on the family farm in Kilcoy, Queensland, where he went to school. He used to travel on a horse until he was around 30.
In 1942, he married Gladys Beanland. He worked as cattle farmer. They had two children.
In 1976, he moved to Nanango with his family. The family drove every Sunday to the Linville Methodist Church, but eventually got involved in the Nanango Uniting Church.
Two of Kruger’s cousins lived to 100, and his aunt lived to 103.
His wife died in 1994. At the age of 86, he started writing books. His life has been documented in a series of books written with the help of his long-time friend and secretary Janet Rowlings. He published 12 books in total. He retired from his farming work in his early 90s, and eventually moved to Roma.
Kruger was taken for a ride on a Harley Davidson motorcycle at the age of 106. In December 2018, a month before his 109th birthday, he was visited by Queensland Senator Amanda Stoker and Member of the Queensland Legislative Assembly Ann Leahy.
Kruger died at the Pinaroo Aged Care Home in Roma, Queensland, Australia, on 20 July 2021, at the age of 111 years, 188 days. He was survived by his son, two grandsons, and six great-grandchildren.
(Partially sourced from Gerontology Wiki)