V formation of 7 to 9 lights fly from horizon to horizon

I was in the backyard of one of my childhood neighbor friends, with my friend. So this sighting was witnessed by my friend and myself. I am not positive of the date, this sighting occurred either in the summer of 1962 or more likely 1963. We were both shocked to see a V formation of lights composed of 7 or 9 points or globs of light pass completely across the sky, coming from behind the southern horizon, all the way to the northern horizon in approxamately 5 seconds. I had never then or now seen aircraft fly at this rate of speed. An airplane would take at least a couple minutes or longer to cross from horizon to horizon depending on altitude. I had the impression that their altitude was very high because there was absolutely no engine sound what so ever, although I have no way of knowing this for sure. They did not have the appearance of stars or meteorites, as they were not distinct points of light. They rather had a sort of oval or round shape but it was hard to tell because they had the appearance of diffused white light. We, as kids would, knew they were "space ships". There was no other explaination. We had spent much time sleeping out in the backyard on hot summer nights counting shooting stars. I would be interested to hear if anyone else saw this that night, as they would have been obviousley seen by anyone in the whole Columbia River valley, that were looking up at the sky at the time.
Date is approximate.  PD