In the spring of 1629, the legal records of Berwickshire mark the formal initiation of proceedings against Isobel Thomesone, a resident of Craikffurde (also noted in related documentation as Craillfurde). On March 17, 1629, her case was officially registered under the reference C/EGD/1069, setting in motion the judicial processes that would lead to her trial, documented under T/LA/615. While the archival trail confirms her identity and residence, historians have taken care to distinguish Isobel from other women of the same name who appeared in the records of the period, most notably an Isobel Thomesoun from Ryslaw.
The archival trail for Isobel remains focused on these specific administrative entries, which delineate the trajectory of her encounter with the Scottish judicial system during the intense legal scrutiny of the early seventeenth century. As her case moved toward trial, the authorities recorded her identity and location with the precision characteristic of the era's legal bureaucracy. Though the surviving documents provide limited insight into the specific nature of the allegations brought against her, they preserve the essential timeline of her involvement in the formal legal processes that defined the witch trials in Berwick during this period.