Painted in watercolor on ivory, the entire portrait measures a tiny fraction over one inch by two inches. Henry Peters Gray (23 June 1819, New York City - 12 November 1877, New York City), American portrait and genre painter. A pupil of Daniel Huntington, he subsequently accompanied his teacher to Europe where he remained for two years, studying in Rome and Florence. Elected a member of the National Academy of Design in 1842 - the year of his portrait - he succeeded Huntington as president in 1870, holding the position until the following year. His later years were devoted to portrait work. (http://godsandfoolishgrandeur.blogspot.nl/2015/07/the-artist-not-art-henry-peters-gray.html)