[1] Jewett resigned his seat on June 23, 1874, and moved to New York City in order to become president of the Erie Railroad,[6] which he served from July 1874 until October 1884.

[2] The borough of Mount Jewett, Pennsylvania, is named for him, as he was president of the NYLE&WRR when it brought rail service to that area.

[11] One of her sisters was married to Ohio Governor Wilson Shannon, another to Rep. William Kennon, another to George Washington Manypenny, and another to Col. Isaac Eaton.

[3] Together, they were the parents of:[3] After his first wife's death in 1850, he remarried to Sarah Elizabeth (née Guthrie) Kelly (1823–1901) in Putnam, Ohio, on April 10, 1853.

[3] Sarah was the widow of Chauncey Regan Kelly, the daughter of Julius Chappell and Pamelia (née Buckingham) Guthrie, and a descendant of Thomas Welles, Chad Brown, Abraham Pierson, and several other prominent colonial figures.

1890),[19] a women's suffragist[20] who was married to John W. Minturn in 1910,[21] Van Rensselaer Choate King (1880–1927),[22] from 1918 until their divorce in 1923,[23] and William Lawrence Marsh.