Did Albert Einstein read the Urantia Book?

On the Blog site of the Finnish daily newspaper Uusi Suomi, Finnish reader Stefan Tallquist posted a speculation that Albert Einstein may have been an early reader of The Urantia Book. Einstein died in his sleep at Princeton Hospital in the USA in April 1955. It’s known that the first copies of The Urantia Book didn’t go on sale until October of that year, in Chicago, but Tallquist speculates that some pre-production copies of the book were circulated by Dr. Sadler in the months beforehand to certain well-known scientists. The source of the speculation about Einstein is the report that a group of physicists visited Einstein’s deathbed and found a copy of the book on his bedside table. I don’t have any verification of this, but it seems almost plausible.