In the spring of 1630, legal proceedings were initiated against Isobel Thomesoun, a resident of Ryslaw in the parish of Fogo, Berwickshire. On March 31, 1630, Isobel became the subject of a formal case registered under the reference C/LA/2863. The subsequent judicial process saw her brought to trial under the reference T/LA/661, marking a significant entry in the local records of the Scottish witch trials.
Historical documentation distinguishes Isobel from other women of similar names appearing in the records, specifically clarifying that she is likely not the same individual as the Isobel Thomesone recorded in Crailfurd or Craigfurd. While the extant records offer few details regarding the specific allegations brought against her, the administrative tracking of her case underscores the structured, legalistic nature of the pursuit of witchcraft in early seventeenth-century Berwickshire. Through these filings, the identity of Isobel remains preserved within the ecclesiastical and secular archives of the period.