Michael Clark Rockefeller (born May 18, 1938; presumed to have died November 17, 1961) was the youngest son of New York Governor (later Vice President) Nelson Aldrich Rockefeller and Mary Todhunter Rockefeller and a fourth generationmember of the Rockefeller family. He disappeared during an expedition in the Asmat region of southwestern Netherlands New Guinea.
 

Early life
After attending The Buckley School in New York, Rockefeller graduated from Harvard University cum laude in 1960, served for six months as a private in the U.S. Army, then went on an expedition for Harvard's Peabody Museum of Archaeology and Ethnology which studied the Dani tribe of western Netherlands New Guinea. The expedition produced Dead Birds, an ethnographic documentary film produced by Robert Gardner, and for which Rockefeller was the sound recordist. Rockefeller and a friend briefly left the expedition to study the Asmat tribe of southern Netherlands New Guinea. After returning home with the Peabody expedition, Rockefeller returned to New Guinea to study the Asmat and collect Asmat art.^[1]
"It's the desire to do something adventurous," he explained, "at a time when frontiers, in the real sense of the word, are disappearing."
Michael Rockefeller spent his time in Netherlands New Guinea actively engaged with the culture and the art while capturing ethnographic data. In one of his letters home, he wrote:
"I am having a thoroughly exhausting but most exciting time here…The Asmat is like a huge puzzle with the variations in ceremony and art style forming the pieces. My trips are enabling me to comprehend (if only in a superficial, rudimentary manner) the nature of this puzzle…"^[2]

Disappearance
On November 17, 1961, Rockefeller and Dutch anthropologist René Wassing were in a 40-foot dugout canoe about three miles from shore when their double pontoon boat was swamped and overturned. Their two local guides swam for help, but it was slow in coming. After drifting for some time, Rockefeller said to Wassing "I think I can make it" and swam for shore. It is estimated that the boat was twelve miles from the shore when he made the attempt to swim to safety, supporting the theory that he died from exposure, exhaustion, and/or drowning. Wassing was rescued the next day, while Rockefeller was never seen again, despite an intensive and lengthy search effort. At the time, Rockefeller's disappearance was a major world news item. His body was never found. He was declared legally dead in 1964.

Speculation
Most believe that Rockefeller either drowned or was attacked by a shark or saltwater crocodile. Because headhunting and cannibalism were still present in some areas of Asmat in 1961, some have speculated that Rockefeller was killed and eaten by local people.
In 1969, the journalist Milt Machlin traveled to Netherlands New Guinea to investigate Rockefeller's disappearance. He dismissed reports of Rockefeller's living as a captive or as a Kurtz-like figure in the jungle, but concluded that there was circumstantial evidence to support the idea that he was killed. Several leaders of Otsjanep village, where Rockefeller likely would have arrived had he made it to shore, were killed by a Dutch patrol in 1958, and thus would have some rationale for revenge against someone from the "white tribe." Neither cannibalism nor headhunting in Asmat were indiscriminate, but rather were part of a tit-for-tat revenge cycle, and so it is possible that Rockefeller found himself the inadvertent victim of such a cycle started by the Dutch patrol.
A book titled Rocky Goes West by author Paul Toohey claims that, in 1979, Rockefeller's mother hired a private investigator to go to New Guinea and try to resolve the mystery of his disappearance. The reliability of the story has been questioned, but Toohey claims that the private investigator swapped a boat engine for the skulls of the three men that a tribe claimed were the only white men they had ever killed. The investigator returned to New York and handed these skulls to the family, convinced that one of them was the skull of Rockefeller. If this event did actually occur, the family has never commented on it. There was, however, a report on the History Channel program "Vanishings" that Rockefeller's mother did pay a $250,000 reward to the investigator which was offered for final proof whether or not Michael Rockefeller was alive or dead.

Asmat artifacts and photographs
Many of the Asmat artifacts Rockefeller collected are part of the Michael C. Rockefeller collection at the Metropolitan Museum of Art in New York City. ThePeabody Museum has published the catalogue of an exhibition of pictures taken by Rockefeller during the New Guinea expedition.

Popular culture
The band Guadalcanal Diary wrote a song about Rockefeller's disappearance, which appeared on their 1985 album Jamboree.
Christopher Stokes's short story "The Man Who Ate Michael Rockefeller", published in the 23rd issue of McSweeney's Quarterly Concern, presents a fictional account of young Michael's demise.
The 2004 novel King of America by Samantha Gillison is loosely based on the life of Michael Rockefeller.^[13]
The 2007 film Welcome to the Jungle deals with two young couples who venture after Michael Rockefeller (thinking they can make a lot of money if they find evidence of Rockefeller) but meet grisly demises.
Jeff Cohen's play The Man Who Ate Michael Rockefeller, based on the short story by Christopher Stokes, had its world premiere in an Off Broadway production at the West End Theatre in New York, directed by Alfred Preisser, from September 10 to October 3, 2010.