Graham Maddox was also born in Apia, Western Samoa, and grew up in Sydney. Besides pursuing a distinguished academic career (currently he is a Professor of Politics in the University of New England), he studied oboe on an orchestral scholarship with Ian Wilson at the Sydney Conservatorium, and with Neil Black, John Anderson and Evelyn Rothwell in London. He has performed widely, and has given many first performances of works by his brother.

Graham is also a talented conductor, and has directed many oratorio and other performances with the Armidale Choral Society, the New England Sinfonia, and the Armidale Symphony Orchestra.