Born at Sheffield in 1893, Herbert was the eldest son and one of six children of Herbert William and Esther Eugine Teanby (nee Bailey). His mother was from Sheffield and his father was a carpenter and joiner from Alkborough. The family were living in Ealand High Street by 1901 and Herbert Jnr was an apprentice wheelwright for his father in 1911.
Herbert enlisted in the army in Crowle in 1915 and was posted to the Royal Field Artillery. He was serving as a Wheeler when he married Rose Eleanor Oughtibridge at St Nortbert’s Church on Christmas Eve 1915. A week after her sister, Emily Oughtibridge, had married Charles Simpson at St Oswald’s.
Herbert was posted to France in March 1917, where he joined the 175th (Staffordshire) Brigade, Royal Field Artillery. In July 1917 the Brigade was posted to Nieuport on the Belgian coast, in readiness for the expected follow-up operations to the Ypres offensive planned for that summer. It was hoped that if the offensive went well it could be supported by a seaborne assault.
Although the assault never happened the Brigade were still at Nieuport in September, providing harassing fire for the British raids and defensive fire when the British troops came under attack. They were of course a prime target for the German artillery and suffered regular casualties mostly from artillery shelling but also the occasional bombing raid from enemy aircraft. The brigade diary records that they fired 39 rounds at an enemy aircraft at 6.30am on 6th September.
On the evening of 12th September 1917 Herbert was on guard duty when the Brigade were again attacked by an enemy aircraft. One of the bombs dropped by the aeroplane landed close to where Herbert was stationed and he sustained serious injuries in the explosion. Never recovering consciousness Herbert Teanby died of his wounds the following day. He is buried at Zuydcoote Military Cemetery.