If you discovered when George BICK entered the Hospital, this could give time-frame

His death record gives him a dob 1864 - the 1911 census his age is 45

On National Archives

Herefordshire City & County Mental Hospital, Burgill - 1871-1967 (if this is where George BICK was) and held by Herefordshire Archives Service

Admissions Register, Patients Records incl case records and medical register, adminstrative and financial records.