Harry was born in Wolverhampton in 1882, the son of Thomas and Sarah Monger. In 1891 he was living with his parents at 14 Coven Street, along with brothers James, Thomas, Edward, and a 1 week old unnamed brother (on the census it simply says “not yet christened”). This brother was later named Joseph. In 1903, he married Margaret Donnelly in Wolverhampton. By 1911, they were living at 118 Lower Stafford Street, together with their two sons, James and John Henry. Harry was a whitesmith for a hardware manufacturer.
Harry enlisted in the 1st or 2nd Battalion of the South Staffordshire Regiment (number 10410), and became a Lance Corporal. He was killed in action on 25 September 1915. He is remembered at the Loos Memorial.