It appears on the first Ordnance Survey six-inch map of 1839 and again on the revision of 1900, a quiet cartographic persistence for something whose significance had already faded from local knowledge by the time anyone thought to write it down.

Writing in 1905, the historian William Carrigan noted the well under the name "Lady Well", placing it about half a mile from a neighbouring holy well called "Brae-ag-ogue". His observation was a brief and slightly melancholy one: the tradition of the well's ever having been holy, he wrote, was lost. Holy wells in Ireland were typically sites of localised devotion, often associated with a patron saint or the Virgin Mary, visited on pattern days for prayers, cures, or ritual offerings. The "Lady" dedication suggests a Marian connection, though whether that name preserves an older sacred association or was applied more loosely is no longer recoverable. What Carrigan captured was not a living tradition but the outline of one, already gone by the early twentieth century. The well that appears on Shragh Hill's north-east slope, roughly 900 metres south-east of "Brae-ag-ogue", is most likely the one he was describing, a well present on the landscape but stripped of whatever meaning had once gathered around it.