Henry was the son of Thomas Henry and Janet Elizabeth Fisher Sibbit. He was one of seven children, George Bertram, Ida Marion, Winifred May, Janet Louise, Enid Bertha, Arthur Oswald, and Geoffrey B. Sibbit, who also died in the war and is commemorated in this memorial to the fallen as a member of St Bede College, now a part of Durham University.
Henry was educated at Rutherford College, then Armstrong College (1909/10) where he trained to be a teacher. He later became a teacher at West Jesmond County School.
Henry was in the Northumberland Fusiliers, 22nd (Tyneside Scottish) Battalion. He was made temporary Lieutenant on 18th November 1914. By 1916, Henry had risen to the rank of Major. He was wounded on 8th February 1916. Henry was killed in action on 1st of July 1916 aged 27. He was killed in the opening phase of the Somme, called the Battle of Albert, which lasted from 1-13th July 1916.