The Albert N. Hubbard Letter is a diary-style letter that contains information pertaining to fighting and traveling through the Shenandoah Valley, including New Market, Woodstock, Harrisonburg, and Staunton. The letter was written in Martinsburg, Virgnia, between April 27-June 7, 1864 and then sent back to Hubbard's home. Hubbard would occasionally send portions of his diary home.