Simon Goodell Griffin
During the American Civil War, Griffin was a captain in the 2nd New Hampshire Infantry from June 1, 1861 to October 31, 1861. He was the lieutenant colonel of the 6th New Hampshire Infantry from November 28, 1861 to April 22, 1862. Griffin became the colonel of the 6th New Hampshire Infantry on April 22, 1862. Griffin led the regiment in the Second Battle of Bull Run, the Battle of Antietam and the Battle of Fredericksburg. Griffin led first brigade second division for a short time during the winter of 1862–1863. Griffin's regiment was sent west with Major General Ambrose Burnside, where Griffin alternately served as regimental and brigade commander.  He served under Major General Ulysses S. Grant during the Siege of Vicksburg when Major General John G. Parke took IX Corps to Mississippi. IX Corps served for the most time during the Vicksburg campaign with Major General William T. Sherman, preventing Confederate reinforcements from reaching Vicksburg. Next Colonel Griffin participated in Sherman's Meridian and Yazoo River Expeditions in Mississippi in February 1864, which culminated in the Battle of Meridian. Griffin was promoted to brigadier general on May 30, 1864.