He sought to gain formal educational qualifications after moving to Canberra, and has since gained a master's degree in Anthropology focussing on Aboriginal Classificatory Theory and Cognitive Structures and a Doctor of Philosophy degree in Aboriginal Anthropology focusing on Yolngu Cosmology (focusing on beliefs regarding the nature of existence and how the world is ordered.)
Intensive weekend camps, workshops, and other sessions[3] have seen a growing number of Wiradjuri speakers who are beginning to re-establish the language.
He recently returned to painting, and his entry was selected for display in the exhibition of the inaugural Phoenix Prize for spiritual art in 2005.
Until her death in 2008 he was married to Trixie, a part-time lay pastor for a congregation of the Uniting Church at Gunning, near Canberra.
Rudder's publications include: In July 2006, the Parkes Shire Library (central west NSW) inaugurated its collection of books on Wiradjuri[7] attended by Wiradjuri language students from Primary schools at Forbes, Peak Hill and Central West Christian School, whose teachers were learning from Rudder and Grant.