* The Wanderer (1927): This was his debut novel and a significant success. It is a historical romance set in the early days of European settlement in Australia, telling the story of a young convict who becomes involved in a conflict between settlers and Aboriginals.
* The Canyon (1930): This adventure novel also focuses on the early colonial period, involving a young woman who must navigate the dangers of the Australian outback.
* The Curse of the Golden Crown (1932): This is a classic adventure story set in the gold rush era.
* A Valley of Shadows (1934): This novel deals with the Australian frontier and the conflicts between Aboriginal people and European settlers.
* The Golden Head (1938): This novel centers on the story of an explorer searching for gold in the Australian outback.
* The King of the Hills (1941): This book follows the adventures of a young man who flees to the Australian bush to escape a life of crime.
In addition to these, Plewman wrote several other novels, short stories, and articles. He was a prolific writer who contributed significantly to Australian historical fiction.