Amasa Cobb (September 27, 1823July 5, 1905) was an American politician and judge. He was the 6th and 9th Chief Justice of the Nebraska Supreme Court and the 5th Mayor of Lincoln, Nebraska. Earlier in his life, he was a United States Congressman from Wisconsin for 8 years and served as the 13th Speaker of the Wisconsin State Assembly. He also served as a Union Army officer during the American Civil War. Biography Born in Crawford County, Illinois, near Palestine, Illinois, Cobb was the son of Nancy (Briggs) and John Cobb. He moved to the Wisconsin Territory in 1842 and mined for lead. He served in the Mexican–American War as a private. After the war he studied law, passed the bar and set up practice in Mineral Point, Wisconsin. He was a district attorney from 1850 to 1854, then was elected to the Wisconsin State Senate in 1855, serving until 1856. During his term, he was also the adjutant general of Wisconsin from 1855 to 1858. He became a member of the Wisconsin State Assembly in 1860 and served as speaker in 1861. At the outset of the Civil War, on July 12, 1861, he joined the Union army as Colonel of the 5th Wisconsin Infantry Regiment, serving in the Army of the Potomac in several campaigns and battles. Most notably, Cobb succeeded Brigadier General Winfield S. Hancock in command of a brigade in second division VI Corps at the Battle of Antietam, after Hancock was transferred to command the first division II Corps. In the fall of 1862, he was elected to the 38th Congress from Wisconsin's 3rd congressional district for a two-year term. Cobb was reelected to the 39th, 40th, and 41st Congresses, serving until 1871. His last action with 5th Wisconsin Infantry was the Battle of Fredericksburg. Despite being a sitting Representative in the United States House of Representatives, he resumed his military career on September 29, 1864, when he was named as Colonel of the newly raised 43rd Wisconsin Infantry Regiment. After arriving at Nashville, Tennessee, in October, Cobb and his regiment guarded the important supply and railroad depot at Johnsonville in Benton County, Tennessee, on the Tennessee River. On November 4, Cobb's men fought off an attack by John Bell Hood's Confederates led by Major General Nathan Bedford Forrest in the Battle of Johnsonville. For the rest of the war, the regiment was positioned in