Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
He was the son of James R. and Elizabeth M. Gregory. The 1891 census records, James R. Gregory, married and head of the family, a Butcher and Postmaster, born 1835 in Hanslope, Buckinghamshire, and his wife Elizabeth M., born 1839 in High Ongar, Essex. The children were, Flora H., a Coffee Warehouse Assistant, born 1871 in Hanslope, Bucks., Francis E., a Butchers Assistant, born 1874 in Little Bowden, Leics., Leonard S., a Schoolboy, born 1878 in Little Bowden, Leics., Maggy, a grand daughter and Schoolgirl, born 1879 in Little Bowden, Leics., Annie Maddock, a widow and daughter, and a General Shop Keeper, born 1858 in Hanslope, Bucks., John R. Maddock, a grandson, born 1886 in Little Bowden, Leics., and Georgina Maddock, born 1888 in Little Bowden, Leics. The family were residing at Granville Street, Little Bowden, Leics. The 1901 census records, Leonard Gregory, single, a boarder and Journeyman Grocer residing at 10, Wathen Road, Lillington, Warwickshire. The 1911 census records, Leonard Samuel Gregory, single, a boarder and Grocers Assistant residing at 21, Bowling Green Street, Kettering, Northants.