High-altitude fast-moving white streak heading east to west — Benkelman, Nebraska, March 13, 1948
Kenneth Frazier of Benkelman, Nebraska wrote to Senator Wherry to report observing a high-altitude, high-speed white streak traveling from east to west on March 13, 1948. He described it as resembling a 'streamlined train,' moving faster than any vapor-trail-producing aircraft he knew of, and disappearing above the horizon. His son witnessed the observation as well. FBI Director Hoover forwarded the report to the Secretary of the Army.
“Frazier: observed 'high-altitude fast-moving white streak traveling east to west, described as streamlined train, faster than any vapor-trail-producing plane, disappeared above horizon'; son also witnessed.”
Two civilian witnesses (father and son). The description is consistent with either a high-altitude jet contrail (possible for 1948) or an anomalous object. Letter was addressed to a U.S. Senator and forwarded by FBI Director Hoover to the Secretary of the Army, indicating it was taken seriously. Confidence moderate due to limited observational detail.