The entry is probably correct but there is insufficient information to be certain
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Name Horace John JENNINGS   
Rank/Number Acting Bombardier   151182
Regiment Royal Garrison Artillery   76th Siege Bty
Enlisted Sheffield 
Age/Date of death 38      28 Sep 1917 
How died/Theatre of war Died of wounds   France & Flanders
Last known address Heeley, Sheffield 
Cemetery Spoilbank Cemetery, Zillebeke, Ieper, Belgium 
Grave or Memorial Reference II.A.1 
Location of memorial P. Risborough Market House
Date/Place of birth c1879      Sheepbridge, Sheffield
Date/Place of baptism  
Pre-war occupation of Casualty master butcher 
Parents Henry & Mary Jennings
Parent's occupation butcher
Parents' Address (last known) 1911: 95 Thirlwell Rd, Sheffield 
Wife Jessie Mary Jennings nee Hillier 
Wife's Address (last known) 215 Albert Rd, Heeley, Sheffield 
Notes the only apparent connection with Princes Risborough is that Jessie Jennings was born there. The War Memorial lists J E Jennings but this could be an error. 

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