Partial transcription of the letter:
Diary entries by Matthew Marvin, Corporal in the 1st Minnesota Regiment who was wounded at Gettysburg. Marvin is now at his family home in St. Charles, Illinois.
Start for Lawrence 42 miles from here[.] the enemy follow us all the time[.] we get 14 miles from Ripley and are taken prisoners and marched back to Ripley[.]