Basic Details Surname Knollys Forenames Frederick Rogers 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 Yeomany Sub-unit (Primary - Stated) Rough Riders Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) City of London Yeomanry (Rough Riders) Death and Burial details Year of death 1915 Month of death September Day of death 24 Age at death 30