The company was founded in 1823 by. And James Stewart, but the partnership dissolved four years later. By 1830 Jonas Chickering became partners with John Mackay, manufacturing pianos as “Chickering & Company”, and later “Chickering & Mackays” until the senior Mackay’s death in 1841, and reorganized as “Chickering & Sons” in 1853. Chickering pianos continued to be made until 1983.