Sixty-four letters written by George Henry Calvert (8), his mother Rosalie Stier Calvert, and his uncle Charles J. Stier, as well as other members of the Calvert family. All the letters are in French except those written by George Calvert. These latter were written from Europe and describe the life of a young gentleman of leisure in the early 19th century. Other letters deal chiefly with family financial transactions. Also, letters from George Henry Calvert to Hiram Powers, 1843-1857.