A handful of Oak Island investigators have speculated that the walk-in tunnel was found long ago by someone who took full advantage of this hidden entrance to the treasure chamber, then eradicated all trace of it. The name mentioned most often in this regard is Anthony Graves, who assumed ownership of most of Oak Island in 1857. In 1853, John Smith, in the name of what he called “natural love and affection,” had conveyed all the property he owned to his two sons, Thomas E. and Joseph Smith. Shortly after their father’s death four years later, the Smith brothers sold the property to one Henry Stevens, who promptly sold it to Graves. The new owner appeared to have little interest in the treasure hunt. He built his home and barns on the north side of Oak Island, above the shoreline along Joudrey’s Cove (where pieces of the house’s foundation can still be seen) more than 1,500 feet from the Money Pit and lived there until his death in 1887.
Stories that Graves regularly paid for his supplies in Mahone Bay with old Spanish coins are the basis of the claim that he found at least part of the Oak Island treasure, and these have been buttressed by the discoveries of such coins near the spot where Graves’s house once stood, including one coin dated 1598. What undercuts the claims about Graves is that his two daughters clearly did not inherit any significant wealth from their father beyond his land. One of them, whose married name was Sophia Sellers, worked the ground on Oak Island with her husband as farmers who struggled to support their family.
The only involvement Anthony Graves seems to have had with the treasure hunt on the island was the deal he made with a new group from Truro that called itself the Oak Island Association. Graves was to receive one-third of any treasure recovered in exchange for permitting the new company to make yet another attempt to get to the bottom of the Money Pit, but he was due no cash payment.
A number of those who had been part of the Truro Company were members of the Oak Island Association, most notably Jothan McCully and James McNutt. McNutt kept a diary of the Association’s efforts. The new company’s proposal to investors was that with the right equipment and a sufficient workforce it would be able to drain the Money Pit and bring up the treasure. That this was essentially the same claim that had been made by the Truro Company did not dissuade the one hundred people who purchased the first $20 shares of the Oak Island Association that were offered to the public.
Money in hand, the Association in the spring of 1861 barged sixty-three workmen (being paid the then-considerable wage of $18 per month), thirty-three horses, four 70-gallon bailing casks and the most powerful pump to be found in all of Nova Scotia onto Oak Island. The workmen first cleared out the Money Pit and recribbed it to a depth of 88 feet before going to work on a new shaft about 25 feet to the east of the Pit. This shaft (now known as no. 6) was excavated to a depth of 118 feet, before yet another tunnel was driven toward the bottom of the Money Pit, the plan being pretty much the same as the one that had failed for the Truro Company back in 1850: divert the water in the original Pit into a new shaft.
According to a letter written by McCully one year later, the new tunnel “entered the old Money Pit a little below the lower platform, where [we] found the soft clay spoken of in the [1849] boring. The tunnel was unwisely driven through the old pit until it nearly reached the east pipe, when the water started, apparently coming from above the east side.”
The man whom McCully was implicitly accusing of this unwise decision was the Oak Island Association’s superintendent of works, George Mitchell. And while Mitchell’s story does seem to be one of escalating desperation combined with increasingly poor decisions, the man has to be given credit for his relentless effort. What Mitchell ordered his men to do after the 118-foot shaft flooded was set up the big pump next to it while the men and the horses went to work around the clock with the bailing casks, not only attempting to lower the water level in no. 6 but also in the shaft on the west side of the Money Pit (no. 3) and in the original Pit itself. By McCully’s account, the crew and the horses worked nonstop from two o’clock in the morning on Tuesday until late in the afternoon on Thursday and were able to lower the water level to a depth of 82 feet. At that point, the tunnel between shaft no. 3 and the Money Pit became clogged with soft clay that caused the water to begin rising. According to the accounts of McCully and McNutt, the Association crew worked to clear the tunnel until seven o’clock Friday morning, when another massive flow of soft clay out of the Money Pit replaced what they had just spent more than twelve hours hauling to the surface. As they worked to remove this new mudflow, the men recovered a number of curious items. In the Novascotian article, “digger Patrick” reported that these included pieces of wood, blackened with age, that had been “cut, hewn, chamfered, sawn and bored, according to the purpose for which it was needed.” He and the others also pulled out “part of the bottom of a keg,” Patrick recounted. McNutt, writing in 1867, described a “piece of juniper with bark on, cut at each end with an edge tool” and “a spruce slab with a mining auger hole in it” that were removed from the mudflow out of the Money Pit. McCully wrote that there were also oak chips, manila grass, and coconut fiber found in the mud, along with two large stones that he believed had been brought down from the surface of the island.
The Oak Island Association’s work in the tunnel between shaft no. 6 and the Money Pit continued until five o’clock Saturday afternoon, when yet another rush of clay surged into the tunnel. The men working nearest to the Pit (among them Adams A. Tupper) reported that the bottom of the shaft had sunk by several feet and that the cribbing inside had shifted. Tupper can’t have been the only one who recognized that sinking yet another shaft in the vicinity of the Money Pit—which made a total of six deep, broad holes and at least as many tunnels within a circle 50 feet wide—might have destabilized the Pit to a point of collapse. Perhaps there was some discussion about it when the men took a break for supper that Saturday evening. All we know for certain is that the men had just begun to eat when they heard a “tremendous crash” as McCully described it and hurried back to the Money Pit only to discover that water in it was “boiling like a volcano.” The bottom had literally fallen out of the Pit, pulling down with it all of the cribbing and tools in the original shaft, along with tons of mud that flowed into the new tunnel.
In a letter written June 15, 1895, Samuel C. Fraser, who had worked as the foreman of operations for the Truro Company and had returned to the island as part of the Association, laid the blame on Mitchell:
He finished the sinking of the 118 foot shaft through which the water was [to be] taken away, while the Money Pit was to be cleared out to the treasure. . . . I was sent down to clean out the Money Pit, but before going into it I examined the 118 foot pit and tunnel, which was then nearly finished. At the end of the tunnel I saw every sign of the cataclysm that was about to take place and I refused to go down [again] into the Money Pit . . . When the pit fell down I was there, and I, with George Mitchell, threw a line down as far as it was open from the top when the subsidence ended: it was open 113 feet from the top. . . . There went down 10,000 feet of lumber, board measure, the cribbing of the old Money Pit.
This would prove to be the greatest disaster in the history of Oak Island not involving the loss of life, leaving the Money Pit an all but impenetrable jumble of mud, lumber, and equipment. The treasure, if there was one, was believed to have fallen either into a tunnel or deeper into the Pit.
The former Truro Company foreman Samuel Fraser believed the latter:
The pirates sank the shaft at first 155 feet deep, put part of the treasure there with a branch drain into it. Then working upon the older superstition that “treasure runs away from the seekers” . . . put another portion at 100 feet, with a drain into it.
This meant, Fraser wrote to his friend in 1895, that whatever was buried in the Money Pit had dropped into an open space that was, he estimated, 155 feet deep. On what basis Fraser supposed this he never stated in the letter.
Those who believed the treasure had slid into the tunnel seemed to have based much of this opinion on the fact that J. W. Publicover, the last man out of the 188-foot shaft no. 6 and its adjoining tunnel, had come to the surface with a yellow-painted wooden disk about the size of a barrelhead that had landed at his feet in the tunnel when the Money Pit collapsed. The men who examined it agreed that it must be part