This collection primarily consists of the professional and personal correspondence, the majority of which dates from 1756 to 1848, of various members of the Saqui family that illustrates the way the aristocratic family struggled to negotiate its position during and after the French Revolution. The Saqui de Sannes family of Provence is significantly represented though other branches of the family, including des Tourrès, Le Bretton des Chapelles, de Villeneuve d'Ansouis, and others are also documented. Earlier letters document conflicts between the Provincial Assembly and the King's Steward and also relate to a legal affair regarding inheritance. The family's situation during the Revolution is also documented as are various issues the family grappled with throughout the 19th century, including financial problems, inheritances, and marriages.

Those family members who are significantly represented include Antoine Pons Elzéar de Saqui, baron de Sannes (1740-1806), and his family, including his father, Charles-François de Saqui, baron de Sannes (1713-1773); and his son, Charles-Antoine de Saqui (1767-1858). Charles-Antoine de Saqui's family is also represented as well as the family of his wife, Zoé Sophie Geneviève Camille de Saqui des Tourrès (1785-1846), including Zoé's sisters, Sabine de Saqui and Rose Marie de Saqui (b. 1789), who married Admiral Louis Charles Hilarion de Saqui (1749-1826). Charles-Antoine and Camille de Saqui's son, Charles Emile Hippolyte de Saqui de Sannes (1811-1878), and his wife, Elzéarine Eudoxie de Villeneuve d'Ansouis (1818-1885), are also significantly documented as are Eudoxie's parents, Sylvain Henri Sébastian Théodore de Villeneuve d'Ansouis (1771-1818?) and Marie Francoise Joséphine Thérèse de Ribère d'Entremont (b. 1777). Another line of the family represented is Jean Joseph de Saqui, marquis des Thourets (1746-1801)--the brother of Louis Charles Hilarion de Saqui (1749-1826)-- his wife, Louise Marie Claudine Le Bretton des Chapelles de Saqui (b. 1825?) from Haiti, and their only son, Marie Alexandre Ernest de Saqui, marquis des Thourets (1798-1862). Some letters relate to members of the Le Bretton des Chapelles family who fled to Philadelphia, Pennsylvania during the Haitian Revolution.