An artificially constituted collection which contains material created by the Leavitt family. Includes genealogies focusing on the Leavitts in the 17th and 18th centuries, focusing on subjects such as John Leavitt's emigration to New England in the 17th century and the activities of Martin Leavitt (1755-1785) and other family members around the time of the American Revolution. There are also materials relating to the work of John Leavitt (1799-1877) as a pump maker, including correspondence and receipts. Land records, dating between ca. 1764-1815, focus on the buying and selling of land, surveys completed of family land, and assessments for taxes to be paid on land. There are also personal records for several family members, including notebooks and receipts of expenditures for Elijah Leavitt (1803-1876), Jacob Leavitt's (1740-1826) manuscript on the owners of properties in Hingham, Mass., and a surveying book with information on the changes in Hingham roads over time. There are also school books belonging to John and Thomas Leavitt (1801-1846) containing notes and exercises dating from ca. 1790-1817. There are also a substantial number of publications (1944-1967), which were written by Howard Leavitt Horton (1904-1983), which focus on the history of Hingham, Boston, and the South Shore.