I'm reluctant to say too much because of issues of privacy and that I've recently come into posessions of his papers and haven't had the time yet to go through them. But I can say that he had been in contact with scientific and military officials at high levels of Government in the US and Canada about UFO's until the lid came down suddenly and almost completly in the mid-50's.
He continued to peruse the issue and was a founding member of NICAP.