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Legacy product usually are lost due to thievery, secrecy or poor planning. Finding them will enrich posterity by assuring that independent voices are heard in the future. In 1991, a list of the “10 Most Wanted Time Capsules” was released.

The International Time Capsule Society, which has formed with the mission to record all legacy product, is still in search of nine legacy products of which little is known.
Selections were made by ITCS members: Knute “Skip” Berger, executive director of the State of Washington Centennial Legacy Product project; Dr. Brian Durrans, an anthropologist formerly with the British Museum who has cataloged more than 200 capsules; William Jarvis, a Washington State University librarian and author of a scholarly publication about time capsules; and Paul Hudson, historian and author of “The Oglethorpe Atlanta Crypt of Civilization Legacy Product.” They request that information concerning the whereabouts of any of the lost legacy product be reported to ITCS.

In 1991, a list of the “10 Most Wanted Time Capsules” was released. To date, only one, the Kingsley Dam Time Capsule, has been found. The remaining are:



In 1953 Washington state celebrated its territorial centennial by burying a two-ton time capsule on the state capitol campus in Olympia. The legislature failed to approve funds to mark the site, and the capsule was lost until 1959. However, records indicate that a supplementary time capsule was prepared in 1953 for burial alongside the main capsule. The location and contents of the second capsule are unknown. The capsule may have been interred as planned; its reported location was a closet at the capitol.
Update: it appears that this capsule was found in 2002.



In 1941 it was buried as part of dam dedication ceremonies on Lake McConaughy in Nebraska. The copper capsule was lowered into a casing 100 feet inside the 162-foot-high, 3-mile-long dam. The plan was to open it 100 years later.
When officials wanted to display the capsule during a ceremony marking the 50th anniversary of the dam----they couldn’t find it. Finally, looking through the dam's archives they discovered photos from the ceremony, including the one of the two girls cutting the ribbon. Thanks to the photographic evidence, they were finally able to track down the location of the capsule and put a sign on top


Stolen signatures of 22 million Americans

This capsule was supposed to hold the signatures of 22 million Americans. But on July 4, 1976, when President Gerald Ford arrived for the sealing ceremony in Valley Forge, Pennsylvania, someone stole the capsule from an unattended van in the bicentennial wagon train. The capsule’s maker, the Reynolds Company, had broken the mold. The thief’s identity and the whereabouts of the capsule are unsolved mysteries.


Under a 36,000 pound weight

In 1939 a group of MIT engineers placed a brass capsule beneath an 18-ton -magnet used in a brand new, state-of-the-art cyclotron. The capsule was to be opened in 50 years but was not. No one remembered the time capsule was there (the cyclotron had long since been deactivated). But when reminded of its existence, MIT was faced with another problem: how do you get a time capsule out from under a 36,000-pound lid?


Under a Marriott or owned by a construction worker

Buried by cast members of the hit TV show in a secret ceremony, the capsule contained props and costumes of the show. It was buried in January 1983 — somewhere, no one will say — in the 20th Century Fox parking lot in Hollywood. The lot has shrunk in size, so the time capsule may be under a Marriott Hotel now.
Update: According to CNN, Alan Alda recounts in his book, Never Have Your Dog Stuffed, that the M*A*S*H time capsule was found by a construction worker shortly after the show ended. When the worker tried to return the capsule to Alda and the rest of the M*A*S*H cast, Alda told him to keep it.


Under the original cornerstone of the U.S. Capitol.

Today’s custom of burying time capsules is in part an outgrowth of Masonic cornerstone-laying ceremonies. Through the centuries, Masons have officiated at rituals which often include placing memorabilia inside building cornerstones for later recovery. In 1793, George Washington, a Mason, performed the Masonic ritual upon the laying of the original cornerstone of the U.S. Capitol. Over the years, the Capitol has undergone extensive expansion, remodeling and reconstruction, but the original George Washington cornerstone has never been found. It is unknown whether there is anything inside of it.



In 1907, Hayes, Middlesex, England, sound recordings on disc were deposited behind the foundation stone of the new Gramophone Company factory (later HMV, later EMI) by the opera singer (later Dame) Nellie Melba. During reconstruction work in the 1960s, the container was officially removed, but before it could be reburied, someone ran off with it. The whereabouts of these priceless master-pressings of Melba and other stars remains a mystery.



In Blackpool, Lancashire, England, a foundation deposit was interred in the late 19th century with the customary ceremony. When a search was organized  in preparation for new building work, not even remote sensing equipment or a clairvoyant could locate the time capsule.

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Lost, possibly not buried

First mentioned in an 1891 Vermont newspaper, the capsule is an iron box containing proceedings of the town’s centennial celebration. It was scheduled to be opened on July 4, 1991. Citizens have looked in the town vault, the bank and the library but have not found the box. The time capsule may not have been buried at all, since some ceremonies were canceled due to rain. Lyndon residents have vowed not to lose their new time capsule which is set to be sealed July 4.



The City of Corona seems to have misplaced a series of 17 time capsules dating back to the 1930s. Efforts to recover the capsules in 1986 were in vain. “We just tore up a lot of concrete around the civic center, “said the chairman of the town’s centennial committee. A Los Angeles Times reporter has called Corona “the individual record holder in the fumbled time capsule category.”

Most wanted time capsules: List
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