John Pierpont "Autographs of Freedom" (1853). John Pierpont did not write the song "Jingle Bells" as erroneously claimed by Robert Fulghum in his collection of essays It Was on Fire When I Lay Down on It (1989). "Jingle Bells" was composed by his son James Lord Pierpont, who lived in Savannah, Georgia, and who was a Confederate soldier during the Civil War, composing songs for the Confederate States of America, including "Our Battle Flag", "Strike for the South", and "We Conquer or Die". John Pierpont was also the maternal grandfather of financier J. Pierpont Morgan. For detailed genealogical information, see 20>16232 in
James Pierpont (mathematician) New Haven and was appointed as a lecturer at Yale University, where he spent most of his career. In 1898, he became professor. Initially, his research dealt with Galois theory of equations. The Pierpont primes are named after Pierpont, who introduced them in 1895 in connection with a problem of constructing regular polygons with the use of conic sections. After 1900, he worked in real and complex analysis. In his textbooks of real analysis, he introduced a definition of the integral analogous to Lebesgue integration. His definition was later criticized by Maurice Fréchet. Finally, in the 1920s, his interest turned