James Tanner may be the most famous person in nineteenth-century America that no one has heard of. During his service in the Union army, he lost the lower third of both his legs and afterward had to reinvent himself. After a brush with fame as the stenographer taking down testimony a few feet away from the dying President Abraham Lincoln in April 1865, Tanner eventually became one of the best-known men in Gilded Age America. He was a highly placed Republican operative, a popular Grand Army of the Republic speaker, an entrepreneur, and a celebrity. He earned fame and at least temporary...