Orlando Comstock Geer was born to Alexander Hamilton and Cordelia (Comstock) Geer in Maumee, Ohio on October 22, 1840. He was the oldest of three children, including Amos Wight (1843-1900) and Harriet Cordelia (Geer) Church (1848-1936). When the Civil War broke out, Orlando Geer enlisted in Company A of the 14th Ohio Volunteer Infantry as a Corporal. This unit participated in the siege of Corinth, Mississippi, the Tullahoma Campaign, the occupation of Middle Tennessee, the Chickamauga Campaign, the Chattanooga-Ringgold Campaign, and the Atlanta Campaign. Geer was promoted to Sergeant on May 21, 1865 and mustered out on July 11, 1865. He returned to Lucas County after the war, where he lived until his death in Maumee on February 9, 1927.