The Manuel Rionda papers reflect activities of a sugar baron, Manuel Rionda, Spanish-born master of two important Cuban sugar mills and chair of the major U.S. sugar brokerage firm of Czarnikow-Rionda. Rionda was a businessman associated with Cuba, New York and Santo Domingo. The majority of materials include bills of ladings Rionda used to conduct his shipping business between New York and Cuba and Santo Domingo. Correspondence and other official documents are also included in this collection.