Basic Details Surname Callis Forenames William Cecil 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) City of London Yeomanry Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) City of London Yeomanry (Rough Riders) Death and Burial details Town of death Verbrandenmolen, Ypres Year of death 1916 Month of death December Day of death 2 Age at death 33 Manner of death as stated Killed In Action Manner of death reference Killed in Action Personal Details Relationships Son Of Robert & Isabella Callis