Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
He was the son of Walter Kerr, an upholsterer, born 1864 in Southwark, Surrey and his wife Ellen Kerr, born 1862 in Portsmouth, Hampshire. Horace James was born in the 2nd quarter of 1898 in Bethnal Green, Middlesex, his siblings were, Sidney George, born 1893 and Montague Walter, born 1895, the latter two siblings were both born in Forest Gate, Essex and Frederick Cecil, born in the 1st quarter of 1897 in Twickenham, Middlesex, in March 1901 the family home was at Ravenscroft Buildings, 59, Bethnal Green, Middlesex. In April 1911 Horace was a schoolboy and was residing in the family home at 4, Limmer Cottages, Booker, High Wycombe, Great Marlow, Buckinghamshire together with his father a chair upholsterer, his mother and siblings, Nellie, born 1891 in Forest Gate, Essex, Sidney, a chair upholsterer, Montague, a chair upholsterer, Frederick a chair upholsterer’s errand boy and Ernest Edward, a schoolboy, born 1902 in Bethnal Green, Middlesex. His elder brother Frederick Cecil also fell.