John Vistirin's PCC will is likely to have generated Death Duty records. Unfortunately documents online have only indexed the Death Duty Registers up until 1811.
http://www.nationalarchives.gov.uk/documentsonline/death-duty.aspThe Death Duty registers are very helpful because they give the relationship of the beneficaries to the deceased - something not always stated in wills. The registers often follow beneficaries for some years after the administration of the estate, so can give you their death dates and the subsequent married names of female beneficaries.
Death Duty Registers are held by The National Archives (microfilm copies at The Family Records Centre) between 1796-1905. They are microfilmed only up until 1856.
Regards
Valda
