Program

History Colorado

Subject

Site, Transportation

Location

5299 Front Porch Ln, Longmont, CO 80504, USA

Lat/Long

40.190878667104, -104.95518940041

Grant Recipient

History Colorado

On November 1, 1955, 18-year-old Conrad Hopp, his 22-year-old brother, and their father witnessed a bright flash of light after finishing their sugar beet harvest. The brothers drove across the harvested fields toward the light and discovered the burning cockpit of a passenger airplane in the northern section of their property. After observing occupants in the seats, they sought assistance, initiating a three-day recovery operation by first responders and the local community across a six-square-mile debris field.
The aircraft was United Flight 629, which had exploded shortly after departing Denver, Colorado, for Portland, Oregon. All 44 individuals on board—39 passengers and 5 crew members—were killed, and fires fueled by jet fuel burned for three days. Investigators ruled out mechanical failure due to the force of the explosion, and the FBI joined the case after discovering traces of a bomb. After investigating a labor union dispute, detectives examined passengers who had recently acquired life insurance, identifying victim Daisie Eldora King. A search of her baggage revealed documentation concerning her son, John Gilbert Graham, who had a criminal record for forgery and whose mother’s restaurant had recently experienced a suspicious explosion.
A subsequent search of Graham’s residence and vehicle uncovered bomb-making components matching the wreckage debris, alongside multiple life insurance policies containing forged signatures of his mother. Graham confessed to the bombing, motivated by resentment over being placed in an orphanage during his childhood. Because no federal law existed at the time prohibiting aircraft sabotage, Graham was charged exclusively with the murder of his mother. The legal proceedings became the first televised trial in Colorado. Graham was convicted and executed on January 11, 1957.
The incident resulted in long-term legal and social changes. Airport life insurance vending machines, now associated with criminal activity, were ultimately phased out by the 1970s. On July 14, 1956, President Dwight D. Eisenhower signed the Aircraft Sabotage Act (Public Law 709, or 70 stat. 539) into law, establishing the intentional destruction of commercial aircraft as a federal crime. In the decades following the crash, much of the affected farmland in Longmont was developed. The remaining undeveloped land is the site of a new local fire station, where a portion of the property is being used to construct a permanent memorial for the victims, as of 2026.
The people remembered through this memorial include:
Crew:
Lee Hall
Samuel F. Arthur
Donald A. White
Jacquelyn Hinds
Peggy Ann Peddicord
Passengers:
Fay Ellis “Jack” Ambrose
Bror Howard Beckstrom
Irene Josephine Norris Beckstrom
John Peter Bommelyn
Frank Mark Brennan Jr.
Clarissa Louise Dodds Bunch
Horace Bradley Bynum
Caol Bynum
Thomas L. Crouch
Barbara Jean Cruse
Carl Frederick Deist
John P. Des Jardins
James Francis Dorey
Sarah L. Walsh Dorey
Charles Gurney Edwards
Elizabeth Dealey Edwards
Helen K. Fitzpatrick
James I. Fitzpatrick II
Virgin Herman
Goldie May Herman
Elton B. Hickok
Marion Pierce Hobgood
John W. Jungels
Daisie King
Gerald George Lipke
Patricia Lipke
Lele McLain
Frederick Stuart Morgan
Suzanna F. Morgan
James W. Purvis
Herbert G Robertson
Harold Sandstead
Sally Ann Scofield
Jesse Sizemore
James E. Straud
Clarence Todd
Ralph W. Van Valin
Minnie Van Valin
Alma Louise Winsor