For Emma Culligan, the most important discoveries on Oak Island do not always come from deep underground.

Sometimes, the smallest details hidden inside an ordinary piece of metal can reveal a much larger historical story.

In Season 14, Emma has returned to the laboratory with two unusual iron artifacts recovered during the excavation near Lots 4 and 5.

Their composition has produced a particularly intriguing comparison with ironwork previously examined from the Maine homestead of Sir William Phips.

But what exactly did Emma discover, and why has this connection attracted so much attention?

 TWO IRON ARTIFACTS THAT DEMANDED A CLOSER LOOK

Emma Culligan’s importance in Season 14 becomes particularly clear when the team begins examining the artifacts recovered from the shoreline excavation between Lots 4 and 5.

What initially appeared to be an ordinary archaeological recovery quickly developed into a more complicated investigation.

During the excavation, metal detection expert Gary Drayton discovered a large hand-forged iron spike buried deep in the sand near the corner of an old slipway.

A square-shanked iron nail was also recovered nearby.

Archaeologist Laird Niven considered whether the larger spike could have been used to secure a wooden structure, possibly one that had disappeared after decades or centuries of exposure to the elements.

The location was important.

The team was investigating an area associated with an old shoreline feature, where evidence of earlier human activity had already attracted attention.

Pottery recovered from the same excavation provided another historical reference point, helping researchers understand when the site might have been used.

However, identifying an iron object by appearance alone is difficult.

A heavily corroded spike can look similar to countless other pieces of historical metalwork.

Its actual composition, manufacturing characteristics and relationship to other objects may reveal considerably more than its shape.

That was where Emma entered the investigation.

As the team’s archaeometallurgist, she examined the recovered spike and nail using laboratory technology, including CT scanning.

Her analysis identified both objects as heavily worn, hand-forged wrought iron.

Their composition also showed similarities, suggesting that the two artifacts could belong to a related period of metalworking.

The first important result was an estimated historical range: approximately the mid-1600s to the mid-1700s.

That finding immediately raised the significance of the objects.

The artifacts were potentially older than much of the iron material previously associated with Lot 5.

But the most intriguing detail emerged when Emma compared their composition with material examined in an earlier investigation.

THE SIR WILLIAM PHIPS CONNECTION THAT CHANGED THE INVESTIGATION

Emma’s analysis revealed something the team could not establish simply by looking at the artifacts in the field.

The composition of the newly recovered iron was the closest match so far to ironwork from the Maine homestead of Sir William Phips that had previously been examined in the laboratory.

For Oak Island researchers, this was a particularly interesting comparison because Phips has long occupied an important place in the island’s historical theories.

The 17th-century English-born explorer and treasure salvor became associated with the recovery of valuable Spanish treasure from a sunken ship.

Historical accounts and later theories have also connected him to the possibility of valuable objects being hidden or lost in the region.

But a similarity in metal composition does not automatically establish that an artifact belonged to Phips, his crew or one of his expeditions.

That distinction is essential.

Emma’s findings provided a scientific comparison, not a historical identification.

The iron artifacts could have originated from a similar manufacturing tradition, period or source without necessarily having any direct connection to the famous treasure hunter.

Nevertheless, the comparison gave the team a concrete reason to investigate the possibility further.

There was another important detail.

The large spike and the square-shanked nail were recovered close to one another, in an area where the team was investigating a possible old wooden shoreline structure.

If the objects were associated with that structure, they could help researchers reconstruct what activities once took place there.

The pottery offered additional context.

Laird identified a creamware fragment, a type of English pottery associated with a later historical period, while the iron analysis suggested that the metal could date considerably earlier.

This created a more complicated archaeological picture.

Were the artifacts evidence of several different periods of activity at the same location?

Had an older structure been reused or modified by later visitors?

Or had objects from different periods accumulated naturally within the shoreline deposits?

Each explanation carries a different historical implication.

The discovery also highlighted one of Emma’s most valuable contributions: her ability to separate what an artifact actually reveals from what researchers might hope it means.

A metal detector can locate an object.

An archaeologist can interpret its archaeological context.

But laboratory analysis can provide another level of evidence by examining the material itself.

Without Emma’s work, the comparison with Phips’ ironwork might never have become such an important part of the discussion.

And this was not an entirely new area of research for her.

Emma had previously helped the team investigate a silver English shilling fragment recovered on Oak Island during Season 12.

Its identification prompted renewed discussion about the possible historical connection between Phips and the island.

Season 14 therefore brings an earlier line of investigation back into focus, this time through a different category of evidence.

 WHY EMMA’S ROLE COULD BECOME EVEN MORE IMPORTANT

Emma Culligan is not simply a laboratory specialist who appears when the team needs an artifact identified.

Her work helps determine how much confidence the Fellowship can place in a discovery before building a larger historical interpretation around it.

She joined the program in Season 10 and brought a combination of engineering and archaeological knowledge to the investigation.

Her background in metallurgy has allowed her to work with techniques such as X-ray fluorescence and X-ray diffraction, which help researchers investigate the elemental composition and material characteristics of recovered objects.

These methods are particularly valuable on Oak Island, where the team regularly encounters metal fragments whose appearance alone cannot establish their age, origin or purpose.

The Season 14 investigation demonstrates why that expertise matters.

Two seemingly ordinary iron objects became relevant to a much larger historical discussion because their composition could be compared with previously studied material.

And the significance extends beyond Sir William Phips.

If future analysis establishes that the objects belong to a particular manufacturing tradition or historical source, the team could gain a better understanding of who worked around the shoreline and what kinds of structures existed there.

That information might also help distinguish different periods of activity across the island.

There are still important limitations.

The current comparison does not prove that Phips visited the excavation site, that his men constructed the slipway or that the artifacts were connected to buried treasure.

Establishing such a connection would require stronger archaeological context and independent historical evidence.

Emma’s work is therefore important precisely because it does not offer an easy answer.

It gives the team something measurable to investigate.

Her return to Season 14 also places her expertise within a wider investigation involving the Money Pit, Lot 8 and other locations where unusual structures and materials are being examined.

As more objects are recovered, the laboratory may become increasingly important in determining whether separate discoveries belong to the same historical story or represent entirely different periods.

For Rick and Marty Lagina, the challenge is no longer simply finding unusual objects.

It is understanding how those objects fit together.

And Emma may hold one of the most important pieces of that puzzle.

The iron recovered near Lots 4 and 5 has produced a historical comparison that the team cannot ignore, but the identity of the people who originally made and used it remains unresolved.

If additional artifacts reveal the same material signature, could Emma eventually establish a much stronger connection between Oak Island’s early activity and the world of Sir William Phips?