The island's name translates roughly from the Irish as "island of the devout foreigner", and its monastic ruins speak to a long tradition of religious settlement in this part of Connacht. The cross-inscribed stone in question, however, turns up in the historical record under two separate entries, one of which amounts to little more than an administrative ghost, a duplicate created through a cataloguing error and later reclassified as redundant. It is a reminder that the process of documenting Ireland's archaeological heritage is an ongoing and imperfect one, subject to the same clerical slippages as any large-scale record-keeping endeavour.

The substantive details about the actual stone belong to the original record, filed under the reference GA040-013013-, where the monument is properly described. Cross-inscribed stones are among the more common survivals of early medieval Irish Christianity, typically flat or upright slabs bearing incised crosses in a variety of forms, from simple linear cuts to elaborate ringed designs. They mark everything from grave sites to boundary points, and Inchagoill's examples sit within a landscape that includes two early churches, one associated with Saint Patrick's nephew Lugna, whose name appears on one of the island's remarkable inscribed stones in what is considered among the oldest Christian Latin inscriptions in Ireland outside of Roman Britain. That broader context gives the site considerable significance, even when one particular database entry turns out to contain nothing beyond a correction notice.