Duncan graduated from Lakehead University having studied English Literature and Fine Artist, HBA in English Lit.
After graduation, Weller moved from Thunder Bay to Toronto, then to Victoria, North Vancouver, Montreal and back to Thunder Bay where he held various jobs before winning awards and securing several grants from the Ontario Arts Council to continue work on his paintings, animation, and picture books for children. He writes an arts column for The Chronicle-Journal. He received a Chalmers Arts Fellowship allowing him to do research for an upcoming picture book in Ghana.
Disgruntled with his publisher, Simply Read Books, Weller obtained the rights to his three previous children"s picture books, Spacesnake, Night Wall, and The Boy from the Sun.
In 2013 he self-published three hardcover children"s picture books Various projects are ongoing with new books to be printed on a yearly basis, including novels for both young adults and adults.
Weller is working towards creating a publishing company called Rogue Planet Books. He now lives in Thunder Bay, Northwestern Ontario.