The range of digital sources available to historians has expanded at an enormous rate over the last fifty years; this has enabled all kinds of innovative scholarship to flourish. However, this process has also shaped recent historical work in ways that have not been fully discussed or documented. This article considers how we might reconcile the digitisation of archival sources with their materiality, with a particular focus on the probate records of the Prerogative Court of Canterbury (PCC). The article first considers the variety of digital sources available to historians of the United Kingdom, highlighting the particular influence of genealogical companies in shaping what material is available, how it has been digitised and how those sources are accessed. Secondly, we examine the PCC wills’ digitisation, what was gained and what was lost in that process, notably important material aspects of the wills. This article does not seek to champion archival research in opposition to digitally based scholarship; instead, we remind historians of the many ways in which the creation of sources shape their potential use, and call on historians to push for improvements in the United Kingdom’s digital infrastructure to avoid these problems in future.