(See also Foster & Company and Armstrong Piano Company)
James F. Cook was a large music dealer in Lawrenceburg, Indiana during the late 19th and early 20th Century. Cook contracted the illustrious Foster-Armstrong Piano Company of New York to build a line of higher quality pianos under his name which would be sold in his retail stores. Foster-Armstrong was a major force in piano manufacturing in the early 20th Century, and they built pianos under the names of Foster, Armstrong, and Foster-Armstrong, as well as J. F. Cook. By the 1920's era, Foster-Armstrong merged with the giant Aeolian-American Corporation, and they began building pianos for several popular piano manufacturers including Haines, Fischer, Marshall & Wendell, Franklin, Holmes & Sons, Brewster, and Stratford. The J. F. Cook name seems to have disappeared around the World War 1 era, although Aeolian continued to build pianos under many of these names throughout the 20th Century before going out of business in the 1980's.