Clark Mills, 1810–83, American sculptor, b. Onondaga co., N.Y. Self-taught in art, he designed and in 1852 cast in an experimental foundry the statue of General Jackson for Lafayette Square, Washington, D.C. Mills had never seen his subject nor an equestrian statue. The daring pose of the horse was a mechanical triumph. Later Mills made a colossal statue of Washington on horseback, and he cast in his foundry Thomas Crawford's Armed Freedom for the Capitol dome.
"Mills, Clark." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (March 18, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/mills-clark
"Mills, Clark." The Columbia Encyclopedia, 6th ed.. . Retrieved March 18, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/mills-clark