The references PROB/6 are to records located in The National Archives (TNA) in Kew. Although the copies of PCC Wills are today available on-line at the TNA Web-site, ( http://www.documentsonline.pro.gov.uk/wills.asp ) those of the Administrations are not. Further, the references IR/26 are to the Inland Revenue series, which cover liability to Death Taxes and which usually include details of legatees, are also available for consultation at TNA in Kew.