These are all validated supercentenarian cases born between January 1, 1840 and December 31, 1849.
Nancy E. (Mitchell) Merriman 112 26 December 19, 1841 January 14, 1954
Betsy Ann (Russell) Baker 113 65 August 20, 1842 October 24, 1955
Velgjer Tostensdotter (Nystuen) Svien 110 105 October 10, 1842 January 23, 1953
Sarah Frances (Pearce) Rockwell 110 29 October 25, 1843 November 24, 1953
[records understate age after childhood]
Jane "Jennie" (Chaplow) Howell 111 292 February 28, 1845 December 16, 1956
Christina Chrissemeuje (Backs) Karnebeek 110 5 October 2, 1849 October 7, 1959
[only ever listed in Guinness as "Baks Karnebeek (Mrs.)"]
Robert Alexander Early 111 1 October 8, 1849 October 9, 1960
Eliza A. (Beaumont) Taylor 110 163 December 16, 1849 May 27, 1960
Louise Irene (Lubben) Godejohann 110 182 December 31, 1849 June 30, 1960