Sarah Anna Bonney 1843 (Mrs. Washington Adams Nichols)
teacher 1843-1844, 1846-1848 Greenwich CT
teacher 1844-1846 Jacksonville IL
teacher 1848-1853, 1856-1867 Danbury CT
teacher 1854-1855 Chicago
teacher 1867-1870 in Europe
Married 1867; husband was a minister
died 1914 in Lake Forest IL
So despite her worrying correspondent, Sarah lived to a ripe old age - older than all but one of her classmates!
Source
All information from One Hundred Year Biographical Directory of Mount Holyoke College 1837-1937, Bulletin Series 30, no. 5; published and compiled by the Alumnae Association of Mount Holyoke College, South Hadley, Massachusetts