In 1991 Colin Johnson changed his name to Mudrooroo Nyoongah. All his works are entered under his latest nom de plume which is Mudrooroo.
Johnson, Colin & Beier, Ulli. The Aboriginal novelist who found Buddha. Quadrant. 29(9)1985, pages 69-75; source transferred from ABI record B0013074 discarded 25/2/21 JR
Antipodes, Dec. 1994 p. 120-2 (name changed legally in 1988 from Colin Johnson to Mudrooroo Narogin; b. near Narogin in Western Australia)
Clark, M. Mudrooroo, 2003 abstr. (Colin Johnson/Mudrooroo Nyoongah) introd. (once known as Mudrooroo Narogin)
NLA Web OPAC, May 7, 2004 (Mudrooroo, 1938- )
The garden of Gethsemane, 1991 t.p. (Mudrooroo) Australian CIP (Nyoongah, Mudrooroo, 1939- )
The Kwinkan, c1993 t.p. (Mudrooroo) Aust. CIP (Mudrooroo, 1938-)
Wikipedia website, viewed on 10 December 2018 (Colin Thomas Johnson (born 21 August 1938), better known by his nom de plume Mudrooroo, is a novelist, poet, essayist and playwright. He has been described as one of the most enigmatic literary figures of Australia and since 2001 he has been living in Kapan, Nepal. His many works are centred on Australian Aboriginal characters and Aboriginal topics. Also known as Mudrooroo Narogin and Mudrooroo Nyoongah. Narogin after the indigenous spelling for his place of birth, and Nyoongah after the name of the people from whom he claimed descent. Mudrooroo means paperbark in the Bibbulmun language group spoken by the Noongar) https://en.wikipedia.org/wiki/Mudrooroo
Austlit website, 7 Feb 2019 (born at East Cubelling (near Narrogin) in Western Australia; Died: 20 Jan 2019 Brisbane, Queensland)