The Letters of William Roscoe Thayer is a collection of personal letters written by William Roscoe Thayer, a prominent American historian, journalist, and biographer, to his friend and fellow historian, Charles Downer Hazen. The letters span a period of over forty years, from 1892 to 1933, and offer a fascinating glimpse into the intellectual and cultural life of the period. Thayer discusses a wide range of topics in his letters, including his travels,...