Father William Booth Gill.
documentedsource_actorLandmark High-Strangeness Cases
Australian Anglican missionary at Boianai; primary witness regarded as impeccably honest, who took real-time notes and led ~38 others in observing the object.
Gill is the documented anchor of the Boianai case: a respected missionary who never sought publicity, took contemporaneous notes during the event, and whose account six other witnesses confirmed to Hynek in 1973. His credibility is why the case resists easy dismissal. The sighting and his notes are documented; the waving figures are the (well-attested) claim.