John Avery Morgan, b. 15 Mar 1809 in Groton, New London County, Connecticut, d. 6 Jan 1883 in Pawcatuck, New London County, Connecticut, son of Nicholas Morgan & Phebe Avery. He married Almira E. Brown (1st wife) on November 20, 1833 in Stonington, New London County, Connecticut. He married Susan Amelia Pendleton (2nd wife) on November 28, 1842 in Stonington, New London County, Connecticut.
John Livingston Rutgers Morgan, b. 27 Jun 1872 in New Brunswick, Middlesex County, New Jersey, d. 13 Apr 1935 in Manhattan, New York County, New York, son of Brockholst Morgan & Mary Rutgers. He married Luna M. Rutgers.
John Pierpont Morgan, b. 17 Apr 1837 in Hartford, Hartford County, Connecticut, d. 31 Mar 1913 in Rome, Italy, son of Junius Spencer Morgan & Juliet Pierpont. He married Amelia Sturges (1st wife) on October 17, 1861 in Manhattan, New York County, New York. He married Frances Louisa Tracy (2nd wife) on May 31, 1865 in Connecticut.
John Tyler Morgan, b. 20 Jun 1824 in Athens, McMinn County, Tennessee, d. 11 Jun 1907 in Washington, District of Columbia, son of George Washington Morgan & Frances Irby. He married Cornelia G. Willis on February 11, 1846 in Talladega County, Alabama.