The Father Gill Sighting (1959)
On the nights of June 26 and 27, 1959, Anglican missionary William Booth Gill and around thirty parishioners at the Boianai mission in Papua New Guinea watched a disk-shaped craft with a raised upper deck hovering low over the mission. Humanoid figures moved about on the upper deck and appeared to respond to hand signals from the witnesses below.
Witnesses
1 missionary, 25+ parishioners
Why it endures
One of the rare cases where a large, disciplined group of witnesses — led by a clergyman — simultaneously observed apparent occupants aboard a craft.
Official version (contested)
Fourteen years later, astronomer J. Allen Hynek re-interviewed the witnesses, all of whom maintained their original account; no conventional explanation was ever accepted.