Basic Details Surname Challis Forenames Walter Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) Middlesex Regiment Rank / Title (Primary - Stated) Private Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Duke of Cambridge's Own (Middlesex Regiment) Rank / Title (Primary - Our reference) Private Death and Burial details Cemetery Name on Arras Memorial Year of death 1917 Month of death May Day of death 3 Age at death 26 Manner of death as stated Not stated