He died on 5 September 2008, three weeks shy of his 78th birthday, as the Bishop Emeritus of Kiyinda-Mityana Diocese, in Uganda.
[1] Joseph Mukwaya was born on 26 September 1930 at Kiwangula Village, Mulajje Parish, Bulemeezi Country, in present-day Luwero District, in what is now (2021) the Kasana-Luweero Diocese.
[2] Later, after his ordination, he went for further studies in the United Kingdom, obtaining diplomas in social development and in religious education.
[2] In addition, he held a Diploma in Radio Broadcasting, obtained from the AACC Communications Centre, in Nairobi, Kenya, in 1968.
[2] He was appointed as Auxiliary Bishop of the Achdiocese of Kampala on 10 September 1982 by Pope John Paul II.