John Hubbard Sturgis was an American architect and builder who was active in the New England area during the late 19th century. His most prominent works included Codman House, Lincoln, Massachusetts, and the personal residence of Isabella Stewart Gardner. Later in his architectural career he founded, along with Charles Brigham, Sturgis and Brigham. The firm lasted nearly two decades in New England and received many notable commissions such as the first Boston Museum of Fine Arts building, located in Copley Square.

John Marriott Blashfield (1811–1882) was a property developer and mosaic floor and ornamental terracotta manufacturer. He originally worked for the cement makers Wyatt, Parker and & Co in Millwall, but moved the business to Stamford in Lincolnshire in 1858, when it was renamed The Stamford Terracotta Company.