The Joseph Hooker Collection is comprised of 22 letters dating from May 10, 1862, to February 12, 1865. They describe Hooker's involvement in the Peninsula Campaign and the Western Theater. Additionally, this collection covers Hooker's leave from the army in Watertown, New York (September 1864), and administrative duty in Cincinnati, Ohio (1864-1865). Roughly half of the letters are addressed to Dr. Bela Nettleton Stevens, a physician at the Government Hospital for the Insane in Washington, D. C.
Of twenty-two letters, nineteen were authored by Hooker. U.S. Senator of New Jersey John Conover Ten Eyck wrote the remaining three. Hooker sought Ten Eyck's help with repairing his reputation after the Battle of Williamsburg in May 1862.
The collection contains official battle reports, including two letters to Chauncey McKeever, one a report on the Battle of Williamsburg, and a report on the Battle of Fair Oaks. The collection includes one letter to L. Sherman and one to Samuel Wylie Crawford. Three letters to William Denison Whipple contain reports on Mill Gap and the Battle of Kolb's Farm.
A majority of the letters are of a personal nature, including one to William Pitt Fessenden and ten letters addressed to Dr. Bela N. Stevens, a physician at the Government Hospital for the Insane in Washington, D.C.
