- Source: Sylvester Madut Abraham
Sylvester Madut Abraham Ayuel Kiir (born 2 March 1933), professionally known as Sylvester Madut Abraham, also known as Madut Aluk, is a South Sudanese educationist who taught in many schools in the United Sudan. He served as an educational director-general of the Ministry of Education of Aweil in 2010.
Sylvester attended the graduation ceremony of the Teacher Training Centre on 6 December 2006, which was organised by the Ananda Marga Universal Relief Team (AMURT). He had been working with AMURT in Malualkhon, Wanyjok, South Sudan.
