In 1897 he began exhibiting sculptures of animals at Paris salons and continued doing so until returning to the United States in 1900, by which time he was firmly committed to animal sculpture.His work was exhibited at both the Pan-American Exposition (Buffalo, New York, 1900) and at the Louisiana Purchase Exposition (Saint Louis, Missouri, 1904) and a decade later at the Panama–Pacific International Exposition (San Francisco, California, 1915).
Harvey also produced architectural sculpture for the lion house at the New York Zoological Park and two lions for the Eaton family mausoleum in Toronto, Ontario, Canada.
Harvey's most popular work was a life-sized elk produced for the Benevolent and Protective Order of Elks and used at their buildings and in cemeteries around the United States.
His home is included on the National Register of Historic Places listings in Clinton County, Ohio.