After 1861 he represented the United States at the Court of Savoy, in the critical years in which Italy was built, and the United States reshaped along modern lines. From his perspective, he described prominent Italian contemporaries and their relations with the United States and his opinion could not be ignored by the Department of State. The hero of the Marsh reports was Giuseppe Garibaldi; the "devil", Napoleon III. His luminous exposition, with a clear and fresh language, revealed many aspects of his historical times and of the images of Italy, which were frequently corroborated by the diaries of American tourists and writers doing their "Grand Tour" far from being a modern country, Italy appeared a wonderful destination for traveling, the land of Dante, Machiavelli, Petrarca.
The volume collects the letters Marsh wrote from Florence between 1865 and 1871, when the Tuscan city was the capital of Italy. As such, this edition of Marsh's official and personal correspondence is a key resource for anyone interested both in the study of U.S.-Italian relations in the early post-unification years and in an understanding of Italy's coeval perception by prominent foreigners who visited the country in that period.