For 35 years, Head of the School of Art, Technical College, East London ( since 1953 ). Jack devoted most of his life to teaching art, and many of his past students have been acclaimed nationally and internationally, eg. Norman Catherine, Michael Costello, Raymond Andrews, Valerie Green, Peter Krummeck, Tina Burlock, Graham Lamont, Derek Bauer and Sharland East. National Moderator for Art exams for Diploma in Art. The House of Assembly appointed him as National Moderator for Art for all Technical Colleges in South Africa. Founder member of the Joint Standing Committee on Design Education. Art critic and journalist on art. Judge for International Salon of Photography for 25 years. Municipal representative on Ann Bryant Art Gallery Advisory Board.