Peter C. Sheppard was born in Toronto, Ontario ib 1882. Peter C. He studied at the Ontario Collage of Art under George Reid, John William Beatty, and William Cruickshank. He won both the Sir Edmund Walker Scholarship in 1912 and the Stone Scholarship for Life Classes in 1913. He graduated with honours for painting, drawing and composition.
During his youth Sheppard apprenticed in the commercial engraving houses of Toronto.
Sheppard exhibited regularly with the Royal Canadian Academy, the Ontario Society of Artists and Canadian National Exhibition. He also exhibited internationally throughout his career.
He taught at the Ontario Society of Artists for some time. He was was member of the Royal Canadian Academy of Arts.
Sheppard's work can be found in many private and public collections, such as the collections of the National Gallery of Canada, the Art Gallery of Ontario, the National War Museum, among others.
He passed away in Toronto, Ontario in 1965.