Nicholas was the son of Lewis and Mary (Wallace) Irelan. In the 1850 and 1860 censuses he has a New Harmony, Ohio (Claremont Co.) address. He was born 6/28/1829.
Information I have from "Military Record of Wood Co, Ohio" states that he enlisted September 19,1861 in Co K of the 48th Ohio volunteer Infantry, as a private. On Febebruary, 14, 1864 Mr. Irelan was among those in the regiment who re-enlisted, and he was sent away with others guarding prisoners before the Battle of Sabine Crossroads in August, 1864, and escaped capture by the "Crescent Regiment". Most of the 48th OVI were captured. From New Orleans, he came home on veteran furlough. He was reunited with his regiment in October, 1864, after their exchange. He mustered out May 10th 1866. There were less then 160 of his regiment left for the muster out.
Mr. Irelan did not return to Clermont Co. following the war. Instead he settled in Wood City near Bowling Green, Ohio where he was the father of 12 children. Later in life he relocated in Mifflin Twp., Ashland Co., Ohio, where he died in 1911 of apoplexy, and is buried in Mifflin Cemetery, next to his 2nd wife Abigail Middleton Irelan.