Horace was born in Wolverhampton in 1898, the son of Henry and Edith Louisa Webb. In 1901, he was living with his parents and grandfather, Thomas Giddins, at 71 Moore Street, Wolverhampton, along with his brothers Harry and Albert. They were at the same address in 1911, but Horace had five more brothers – William, Ernest, Edward, George and Sydney.
Horace enlisted in the Royal Field Artillery (number 77037), before moving to the 2nd Battalion of the Royal Irish Rifles as a Rifleman (number 7626). He first served in France from 1 December 1915. He was wounded, and died on 4 September 1917. Horace is commemorated at the Tyne Cot Memorial in Belgium.