Oliver Hazard Perry Throck Morton , commonly known as Oliver P. Morton, was a U.S. Republican Party politician from Indiana. He served as the 14th Governor of Indiana during the American Civil War, and was a stalwart ally of President Abraham Lincoln. During the war, Morton thwarted and neutralized the Democraticcontrolled Indiana General Assembly. He exceeded his constitutional authority by calling out the militia without approval, and during the period of legislative suppression he privately financed the state government through unapproved federal and private loans. He was criticized for arresting and detaining political enemies and suspected southern sympathizers. As one of President Lincolns war governors, Morton made signification contributions to the war effort, more than any other man in the state, and earned the lifelong gratitude of former Union soldiers for his support.
Morton was an Indiana native born in Wayne County near the small settlement of Salisbury on August 4, 1823, to James Throck and Sarah Miller Morton. His grandfather had shortened the familys surname, Throckmorton, to Morton, but the males in the family carried Throck as a middle name. He was named for Oliver Hazard Perry, the victorious Commodore in the Battle of Lake Erie. Morton disliked his name from an early age, and before beginning his political career he shortened it to Oliver Perry Morton, dropping the middle names of Hazard and Throck. His mother died when he was three, and he was raised by his maternal grandparents. He spent most of his young life living with them in Ohio.
Source: Wikipedia