Dan Cooper
Ticket name of the hijacker
The only name on the Portland ticket. Description: dark suit, quiet manner, mid-forties. Never identified. D.B. Cooper is a reporter’s mix-up that the wires kept.
The living file is a flight crew, FBI agents and a child who found money in river sand.
Amateur suspect names are omitted here unless they entered dated official comparison.
People
Tina Mucklow
Flight attendant, Flight 305
Stayed on board after Seattle and sat with Cooper during the night flight. Her later interviews are primary witness memory, not a solution.
Florence Schaffner
Flight attendant, Flight 305
Received the first note after takeoff from Portland. She and Mucklow are the two cabin witnesses most often cited in the FBI file.
William Scott
Captain, Flight 305
Flew the Seattle hold, the southbound segment and the Reno landing. Crew instrument notes later helped bound the jump window.
Ralph Himmelsbach
FBI special agent, NORJAK
The case’s best-known Bureau voice. His later book argued the jumper likely died; that is memoir, not a recovered body.
Brian Ingram
Tena Bar finder, 1980
As a boy he uncovered three packets of ransom $20s on the Columbia. The FBI authenticated the serials. The find did not name the hijacker.
Crew and agents left paper. The jumper left a nickname and a river exhibit.
Public-record encyclopedia. Not legal advice. Not a how-to. Graphic detail is withheld. Wars belong in a separate atlas.