George D. Shurrum was born around 1840 in Ohio to James Shurrum and Hannah Courter. The family moved to Porter, Wisconsin, in the 1840s, and his father died sometime before 1850. By 1860, he was living in Union, Wisconsin. He enlisted in the Union army on September 4, 1861, and mustered in as a corporal in Company G of the 13th Wisconsin Infantry later that day. The regiment spent most of the war on garrison duty in Tennessee, Kentucky, and Alabama. He mustered out on November 19, 1864, and returned to Rock County, Wisconsin.
He married Hannah M. Whaley there on December 18, 1866, and they had at least five children: Edward, born around 1867; Lena, born around 1869; Mary, born around 1874; Frank, born around 1875; and George, born around 1879. By 1870, he was working as a farm laborer, and a decade later, he was working as a clerk in Milwaukee, Wisconsin. He applied for a federal pension in October 1889 and secured one soon afterward. He died in Milwaukee on January 10, 1890.