The papers document activities of Eugenio Castillo who was a lawyer and a Consul of Cuba before 1959.  He was associated with the following places: Cuba, London, New York, Paris and Baltimore.  The materials include correspondence with prominent Cuban figures including José Raul Capablanca, who was a Cuban chess player and a world chess champion from 1921 to 1927, Luis Machado and others, as well as, PelDrak Cuba Copper Products Corporation data and photographs, invitations, clippings, official papers signed by a president of the Republic of Cuba and memorabilia.