John Williams, a designer for Tiffany, left to start a foundry in New York in 1875 using the sand-casting method for architectural bronze ornament. By 1900 the foundry had expanded into the increasingly competitive sculpture business to cast for Daniel Chester French and Alexander Proctor as well as MacNeil. This foundry persisted until 1953. They incorporated in 1905 and their foundry mark changed then to include "Inc.". From the exhibition: Frontier to Foundry: the Making of Small Bronze Sculpture in the Gilcrease Collection, December 2014 - March 2015. Ann Boulton Young, Associate Conservator for the Gilcrease Museum, 2014