The eastern section of that wall follows a curving line, and it is precisely this curve that has drawn the attention of researchers. Straight walls are built straight for a reason; when a boundary bends in a consistent arc, it often traces the ghost of something earlier beneath or behind it.

The curving form is thought to possibly indicate the original outline of an Early Christian ecclesiastical enclosure, a type of roughly circular or oval boundary, often defined by a bank and ditch, that marked out sacred ground in Ireland from around the fifth century onwards. These enclosures were the defining feature of early Irish monastic and church sites, and their circular logic persisted long after the original earthworks were built over, robbed for stone, or simply forgotten. Researcher Leo Swan noted the significance of this particular curve in 1988, placing Crosserdree within a broader pattern of Irish sites where later graveyard walls preserve the shape of far earlier Christian settlements. The church ruins themselves are medieval in date, and the graveyard contains memorials from the post-medieval period, meaning the site has accumulated layers of use across many centuries, each generation building, burying, and enclosing within roughly the same sacred footprint.