Koos du Plessis
Jacobus (Koos) Johannes du Plessis (10 May 1945 – 15 January 1984) was a prominent South African singer-songwriter and poet, colloquially known as Koos Doep. Although he received critical acclaim for much of his work, he became best known for the runaway success of a rendition of his song Kinders van die Wind (Children of the Wind) by Laurika Rauch.
Koos du Plessis was born in Rustenburg. He was the youngest of four children, and grew up in the mining town of Springs. After school, he attended the University of Pretoria, and the University of the Witwatersrand, majoring in Afrikaans-Nederlands (Afrikaans-Dutch). At university he met his future wife, Mornay. The couple had three daughters, Irma, Karien and Karla. Koos would eventually write a song for each of these four women in his life.
Koos worked as journalist and editor for several Afrikaans publications (Oggendblad, Die Vaderland, Die Nataller en Die Transvaler). He died in a car accident close to Krugersdorp during the early morning hours of 15 January 1984. 
In 2010 two albums were released in The Netherlands. First Ofschaaid Zunder Woorden, an album with songs of Du Plessis sung in Grunnegs by Wia Buze and Klaas Spekken. Karla du Plessis joins for a special duet on this album. Secondly Die Land Van Blou Saffiere is released in the Tussen Kontinente-series. This release is a hardcover book with a biography, lyrics with footnotes and explanations, backgrounds and a cd with 20 of his songs.
- Erfdeel (2004) ISBN 1-919980-20-2
- Om jou verlaas te groet: nagelate verse (1985) ISBN 0-7981-1871-7
- Skink nog ʾn uur in my glas: nagelate verse (1995) ISBN 1-874901-41-4
- Die Land van Blou Saffiere (2010) ISBN 978-90-815659-1-2
- Website dedicated to Koos du Plessis' legacy (in Afrikaans)
- LitNet: The Life and Music of Koos du Plessis (in Afrikaans)
- Dutch website providing information about a project around the work of Koos du Plessis (in Dutch)
- Dutch website in support of the release of the book/cd Die Land Van Blou Saffiere (in Dutch)