30 March 2017
Treasures At The Grand Rapids Library
Finding Aids for the Grand Rapids [Michigan] Public Library are listed here.
One example is the Isaac Tower correspondence, Collection #200 (excerpt from the finding aid below):
"Photocopied letters to Isaac Lewis Tower, a soldier with the 13th Michigan Infantry Regiment during the Civil War. Tower was wounded at Chickamauga in 1863, and returned home after being captured and paroled in 1864."