For what it's worth, Charles BOWEN's account of the case in The Unexplained [page 7; also in The UFO Casebook (Orbis, 1984), page 9] had it that there was only one passenger on board with a camera handy, but he was asleep during the sighting. A few pints of champagne and ladlesful of caviare will do that for you, of course. I don't know what sources Charles based his account on; FSR [Flying Saucer Review - WVU] goes back only to 1955.
["Peter Brookesmith is writer and publisher.
At different times in his life he has been - among a range of other activities - an advertising copywriter, putative literary critic and musicologist (his D. Phil thesis was on folk and rock music), editor of and consultant on highly illustrated more-or-less non-fiction publishing projects, record producer and occasional songwriter, publishing manager, designer of combat-oriented firearms training courses, and author of a somewhat eclectic collection of books that just pass muster as non-fiction. He has twice harangued the Oxford Union (Britain's second oldest University Union) on the non-existence of flying saucers and aliens in our midst, and lectured at various other gatherings on matters ranging from conspiracy theories to the blues (credit goes to en.wikipedia.org for most of the foregoing particulars).
Like David CLARKE and Jenny RANDLES, Peter too is a regular contributor to Fortean Times. About half a dozen of Peter's books are on UFOs.]