Johnson's Island Prison -- Where is your letter? (August 16-December 13, 1863) -- Thoughts of exchange (December 24, 1863-May 8, 1864) -- Sending images (May 11-September 15, 1864) -- Hard rubber and hard times (September 19, 1864-March 12, 1865) -- Going home (March 21-April 29, 1865) -- The prisoner-of-war experience.