Carl Meredith Allen
From the UAP Encyclopedia, the open encyclopedia of UFO and UAP history · 👤 Person
Contents 3
| Type | Person |
|---|---|
| Also known as | Carlos Miguel Allende, Carl Allen |
| On the Timeline | 2 events, 1956 |
Carl Meredith Allen (1925–1994), who also used the name Carlos Miguel Allende, was the source of the story of the Philadelphia Experiment.
The letters

In 1955–56 he wrote letters to astronomer Morris Jessup claiming that in 1943 the U.S. Navy had made the destroyer USS Eldridge invisible and teleported it, with terrible effects on its crew. In 1956 the Office of Naval Research received a copy of Jessup's book The Case for the UFO with handwritten notes by three people discussing aliens; the Varo company later printed copies. In 1969 Allen reportedly admitted the story was a hoax, though he later took this back. The Navy says no such experiment took place.
On the UAP Timeline
- Varo edition of The Case for the UFO (April 1956) — Navy researchers receive an annotated copy of Morris Jessup's UFO book with strange handwritten notes.
- Allende letters and the Philadelphia Experiment (April 1956) — Morris Jessup receives letters claiming a secret Navy experiment at the Philadelphia Navy Yard.
References
- The Varo edition annotations — Obscurantist · obscurantist.com · archived copy
- Hoaxes from space: the Philadelphia Experiment — Swallowing the Camel · swallowingthecamel.me · archived copy
- Carl Meredith Allen ('Carlos Allende') — Wikipedia · en.wikipedia.org · archived copy
- The Case for the UFO: The Varo Edition (reprint) · pastforward.org · archived copy
- Philadelphia Experiment — Wikipedia · en.wikipedia.org · archived copy
- Carlos Allende (Carl Allen) — Obscurantist · obscurantist.com · archived copy
- The Philadelphia Experiment — Skeptic's Dictionary · skepdic.com · archived copy
This page was last edited on 29 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.
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