The Hynek UFO Report, by J. Allen Hynek, 1977, Dell Publishing, New York, pages 151-154:
The case of the Dogs and the Derby Hat

     On March 13, 1957, the owner of a shooting preserve wrote the USAF Filter Center in Trenton the following letter:

               I have learned (belatedly) that your office is the proper place to
    report the sighting of an unidentified flying object described in the enclosed
    affidavit by my wife …   We would be most interested to know if my wife’s
    experience tallies in any respect with any sightings by anyone else in this area on     about March 6.
               We wish absolutely no publicity for ourselves in this connection.

     The affidavit signed and sworn to by Mrs. ______ reads as follows:

    Even at the risk of being called hysterical, hallucinated or worse, I feel I must make record, on my oath as a woman, an American and a member of the human race, of the following:
            That I saw an airborne object which bore no resemblance of any airplane, helicopter or balloon ever made and flown by man, as far as I know.
             That I was in full possession of my senses and my sanity at the time, and all during the time, of my seeing this object, which lasted for at least one minute.
             That I saw the object at a distance of not more than 150 yards at about 2 P.M. on Wednesday, March 6, 1957, first from a rear window and then from out in the back yard of our home on the road from Great Meadows to Hope, New Jersey.
              That the weather was clear under a low overcast, and the position of the object hovering in the air over the slope below our house was such that I could see it—and hear it—with absolute certainty and with concentrated effort to observe and remember every detail.
               That my attention was first drawn to the object’s presence by our dogs barking in their pens behind the house, and by their looking upward at the object, as they and I continued to do so easily until the object departed.
               That the shape of the object closely resembled that of a huge derby hat with a rounded domelike crown 30 to 40 feet high, and at least 50 feet in horizontal diameter above a slightly curled-up “brim” that extended outward for 12 or 15 feet from the bottom of the crown.  This brim or bottom surface of the object appeared to be sealed over smoothly and completely in a gentle curve, with no holes or ports or windows or vents of any kind, of which I could see none anywhere else on the entire object.
                That, in the absence of any opening into it, I could see no beings, human or otherwise, inside the object who might be operating and riding in it, and no crew or passengers were visible on the object’s exterior during its visit.
                 That the color of the object, all over, was a uniform white, dull but clean, with no spots, stripes or other markings whatsoever.  Its texture was apparently non-metallic but reminded me strongly of pipe clay.
                 That a moderate breeze, from the northeast I think, was blowing in which the object hovered quite stationary except for a gentle rocking motion, like a boat at anchor on water.  As the object rocked and in the same cadence it made a low growling or rumbling sound that rose and fell irregularly.
                 That beneath the object, extending vertically toward the ground, I seemed to see, and then not see, and then see again, a lot of streamers or lines of some material (or force) that twinkled like the fragile strands of tinsel with which one decorates a Christmas tree.
                 That without any marked change of sound except a soft rush of air, sucking away and not blowing toward me, the object abruptly ascended almost vertically, slightly northeasterly at immense speed into the thick cloud cover (maybe 300? feet up) and was instantly gone from sight and hearing.
                 Within an hour of my experience my husband telephoned me from New York City.  I told him what I had seen, and told him again in fuller detail when I joined him at 7:20 that evening in the city.  At his insistence I later that evening repeated my account and answered many questions  while my memory was still fresh at the home and in the presence of Mr. and Mrs. ______, 35th Street, N.Y.C.  I told my story reluctantly again to several other friends in the next three days (March 7, 8 and 9), but made no formal report to any authorities, fearing ridicule.    

   The Air Force got around this one by labeling it “insufficient information.”  Their summary card merely states:

             Huge white UFO shaped like a derby hat hovering low over field with
             shimmering rays  below.  Had a rocking motion, undulating rumbling sound.
 Finally shot skyward to northeast.  Dogs barked.       

   The Air Force made no attempt to gain further information.  

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