His brother Private Walter Leavesley enlisted on 3rd April 1915, joining 15th Battalion Nottinghamshire & Derbyshire Regiment. He was discharged as no longer physically fit for service as a member of the Durham Light Infantry on 26th April 1919.
Obituaries published 25th October 1916 in the Nottingham Evening Post :-
LEAVESLEY. – Killed in action, September 26th, Private Horace Leavesley, Sherwood Foresters, age 21. In a far and lonely battlefield, where the trees their branches bend, lies my ever loving son, gone to his untimely end; sleep on, dear son, in a hero's grave, a grave I may never see, but as long as life and memory last, I will remember thee; it's the unknown grave that's the bitterest blow, none but aching hearts can know. – Broken-hearted mother and father, brothers and sisters.”
In memoriam published 26th September 1917 in the Nottingham Evening Post :-
“LEAVESLEY. – In loving memory of our dear son Horace, killed in action September 26th, 1916, aged 21. The house is dark without our loved one, bitterly we miss his face, sadness lurks where once was sunshine, none can fill our loved one's place. One of the best. – Loving mother and father, brothers, sister Louie, Walter (with colours), fiancée Mabel.
“LEAVESLEY. – In affectionate remembrance of our dear brother Horace, killed in action September 26th, 1916. The supreme sacrifice. Ever in our thoughts. – Loving sisters Sarah and Daisy, brothers-in-law Joe and Arthur (with colours).
“LEAVESLEY. – Killed in action, September 26th, 1916, my dear brother Horace. A loving brother, true and kind, he was to all in heart and mind; he always tried to do his best, God grant him eternal rest. – Loving sister Emma, and Frank, Sid.”
Above notices are courtesy of Jim Grundy and his facebook pages Small Town Great War Hucknall 1914-1918.