Mary Macy, a 60‑year‑old resident of the Siasconset neighborhood on Nantucket Island, Massachusetts, disappeared from her home on June 13, 2015. At the time, she was suffering from early‑onset Alzheimer’s disease, which contributed to memory confusion though she remained somewhat functional. Her husband reported leaving their home around 1 p.m., and upon returning, found her missing.
She had left behind all personal effects—cell phone, credit cards, and other belongings—creating immediate concern about her welfare.
Authorities and family launched a large-scale search the following day. Nantucket Police, along with Massachusetts State Police helicopters, K‑9 units, and approximately 250 volunteers, scoured the area around Milestone Road and New Street in Sconset, where she had last been seen. A mobile command center was activated, but by Sunday evening—around 8 p.m.—public search efforts were officially suspended due to lack of leads, although investigators continued to follow up on any tips. Witnesses recalled that Macy had once told a friend she had thought about “going into the water and never coming back,” though she did not appear to be actively suicidal at the time.
Despite exhaustive efforts—covering nearby woodlands, shoreline paths, roads, and possible ferry or boat departures from the island—there was no trace of her. Cape and Islands District Attorney’s Office, state forensic teams, and the medical examiner were involved; still, transport off the island was ruled out, and searches yielding no leads. She remained unlocated for nearly nine years with no confirmed sightings or credible tips.
Then, on April 4, 2024, a man walking in a dense, swampy area of Philips Run forest just south of Milestone Road—about a half‑mile from Macy's former residence—discovered human remains while looking for deer antlers. The remains included an intact skull and a number of bones. Dental implants indicated a relatively recent death; investigators compared records and ruled out other known local missing persons, including long‑unresolved cases such as Jon Hemingway and Margaret Kilcoyne.
By May 1, 2024, those remains were positively identified as Mary Macy, and a death certificate filed with the Nantucket Town Clerk listed her date of death as April 4, 2024—the same day her remains were found. The manner of death remained “pending investigation,” and police indicated the case remained active, with no official determination of suicide, accident, or foul play.
Macy’s disappearance and its tragic resolution underscore the vulnerability of individuals with cognitive impairment living alone. She had been described as an outdoors lover, especially of the Sconset Bluff Walk area, and had roots on the island since childhood. She was known to spend summers on Nantucket before becoming a year‑round resident in the 1970s, raising her family there with her husband and two daughters while working as a library assistant at the Atheneum.
Despite identification, the details surrounding her ultimate fate—whether disorientation led her into remote terrain, or whether other circumstances played a role—remain unresolved. Investigators continue to treat the circumstances as under review, honoring both the seriousness of the case and the grief of those she left behind.Last Seen: Jun 13, 2015
