A realist painter, Peter Sculthorpe is known for landscapes of farm life and stone architecture in Chester County, Pennsylvania, and along the Brandywine Valley, Delaware. He studied at the Pennsylvania Academy of the Fine Arts and established a studio in Chester County. His later depictions have also included Maine and Canada. Regarding his subjects, Sculthorpe says:
"I contemplate the reasons I feel compelled to paint and the importance of what I paint. I need to imagine the world without modern artifices, a world more simple, a time before. Technology has invaded the innermost crevices of our being. Even when painting far from civilization, I am reminded of modern life by the invasive and loud roar of a jet overhead or the prying glint of an automobile. Perhaps that is why I am so intrigued by early structures built with indigenous materials, whether houses or stone walls, constructed by hand with hard but highly skilled labor. They still stand as sentinels of a different time."
His work is included in the collections of the Frye Art Museum, Brandywine River Museum, Delaware Art Museum, the Butler Institute of American Art, and Springfield Art Museum, among others. He has exhibited at numerous galleries and public institutions.