1830 Charlotte Thorsby, academy, 36 Princes st., Bristol, is listed in the Directory of Gloucestershire, in the category academies, seminaries and public schools in list for St. Augustine's Charity School.
1841 U.K. census, Francis Thorseby, male age 40, a pedagogue, and Charlotte Thorseby, age 45, a teacher, lived on Cumberland St. in St. Paul Parish in Bristol, Gloucestershire. Neither were born in that county.
1848 Francis Thoresby died in Bristol in Oct-Dec 1848 (BMD index)
1848 Charlotte Throsby [sic], age 60, arrived in Boston, Massachusetts from Liverpool, England on the ship Faneuil Hall on 24 June. The "country to which they belong" is listed as Ireland for all of the passengers on the ship.
1860 and 1865 Massachusetts censuses: Charlotte lived with the family of her niece Eliza Cushman in South Reading Massachusetts.