The machine, while relatively new, was used to increase to monumental proportions the 500 clay models accepted in 1900 by Karl Bitter, director of sculpture, for the 1901 Pan-American Exposition in Buffalo, New York.
Thirty-five sculptors, including Saint Gaudens, and 50–75 assistants worked for 5 months tirelessly in Weehawken, New Jersey, to produce the 500 plaster-and-fiber statues to be displayed in the temporary Rainbow City of Light, celebrating the genius of man at the dawn of the 20th century.
[4] In 1914 Paine went to San Francisco with fellow sculptor Beniamino Bufano to create a sculpture ensemble designed by Paul Manship for the Panama–Pacific International Exposition.
In 1922, he stayed at the estate of Charles Erskine Scott Wood and Sara Bard Field in Los Gatos and created a pair of large statues of wild cats that are still local landmarks.
[7] Oral history of his daughter Evelyn and her husband, Berkeley architect Robert Ratcliff