Above: Top left, William Parlin. Bottom right, William J. Orendorff.
Right: Cover of a circa 1912 P&O catalog.
Above: William Parlin at work in his blacksmith shop in Canton, Ill.
Above: View of the P&O factory in Canton, Ill., early in the 20th century.
Left: The P&O Diamond sulky plow.
Below: A group of 14 Doukhobor women pull a P&O plow in Canada. The Doukhobors came to Canada in 1899 to escape religious persecution in their native Russia. They lived in communes and believed it was wrong to force an animal to work.