Major Sumner Am serves as a Ngarrindjeri Regional Authority and is a Black Dance Australia board member. He is Artistic Director of the Tal-Kin-Jeri dance group and performs regularly at festivals, events and community celebrations. He is the cultural ambassador of Ngarrindjeri arts, crafts, martial arts and traditional culture. In 2014 he was appointed a Member of the Order of Australia, acknowledged for his life’s dedication in promoting Aboriginal health, welfare, youth and cultural heritage. He is also a member of the World Archaeological Congress and the World Council of Elders. In 2010 Major Sumner initiated the annual Ringbalin Murrundi Rover Spirit project.