(1831 - 1910)
Home State: Pennsylvania
Branch of Service: Infantry
He was a mining engineer before the War. He recruited a company of men as a light artillery battery, but they mustered into service as Company C, 96th Pennsylvania Infantry. He was commissioned their Captain on 23 September 1861.
On the Campaign
Colonel Cake wrote of his actions at Crampton's Gap on 14 September:
Captain Lessing[sic], Company C, deserves especial mention for brave conduct. The prospect of a fight in the wood and among the rocks on the side of the mountain stimulated him to great exertions to gain that point, and he cheered on his fine company most bravely.
The rest of the War
He was promoted to Major on 15 September 1862, and Lieutenant Colonel on 23 December 1862. He was appointed Colonel on 13 March 1863, but not mustered at that rank. He mustered out with the Regiment on 21 October 1864.
After the War
He was in the oil business in northwestern Pennsylvania (with Jacob W Haas). He later moved to Colorado where he ran a hotel, was a real estate developer, and served as the Colorado Territory Surveyor General from 1867 to 1874. He died at the Soldier's Home in Montevisa, CO (now the Homelake Veterans' History Museum).
References & notes
10/31/1831; Pottsville, PA
07/18/1910; Monte Vista, CO; burial in Charles Baber Cemetery, Pottsville, PA