"Though Groton had brief success with the award-winning Crandall Typewriter Co. (shuttered in 1896), Corona, with its new design, would become the town’s first truly successful company in the 20th century.

By 1915, production had outgrown the Carriage Works and a new factory was built, one that would produce Hemingway’s typewriter and, for the better part of the 20th century, would serve as Groton’s beating heart."

Reynolds, Nick. “Hemingway, Groton and the Corona Typewriter.” Ithaca Journal, https://www.ithacajournal.com/story/news/local/2016/04/29/hemingway-groton-and-corona-typewriter/78308130/. Accessed 7 June 2021.