exchemist
Valued Senior Member
The Wiki article also goes into the way the lights have been attributed to different supposed origins, according to changing cultural fads and expectations, and the way in which some stores were fabricated to sustain or improve the myth. So there is quite a lot here abut human motivation and deception."The earliest published references to strange lights there are from around 1910, at about the same time electric lighting was becoming widespread in the area."
Ah, that would explain why witnesses felt they were unusual enough to be worth reporting.
"In 1922, a USGS scientist, George R. Mansfield, used a map and an alidade telescope to prove that the lights that were being seen were trains, car headlights, and brush fires, which ended widespread public concern."
https://en.wikipedia.org/wiki/Brown_Mountain_lights
He seems to have done a pretty comprehensive analysis, documented in this report:
https://web.archive.org/web/20191226144559/https://pubs.usgs.gov/circ/1971/0646/report.pdf