Photos 1, 6, 7, 8, 9, 13: Thomas Edison Research Park
Photos 2, 4, and 5: Courtesy of Edison & Ford Winter Estates, Inc., Fort Myers, FL, www.edisonfordwinterestates.org
Photos 3, 15, 23, 24, 25, 26, 27: Ralph Lauer/24 Words
Photos 10, 11, 12, 14, 16, 17, 18, 19, 20, 21, 22: Image from the Collections of The Henry Ford