Hi Arne,
I, for one, would be fascinated to read those postcards, should they turn up. I am only sorry that you have come to a temporary dead end. Clifford would certainly have made numerous references to his poor health which beleagured his enjoyment of his business and pleasure trip to England, Germany, France, Austria, Switzerland and other countries, and which undoubtedly prompted his decision to take out $50,000 extra life ensurance shortly before he booked passage on Titanic for the return trip to Stoughton. Clifford's friend and work colleague, Walter Chamberlain Porter (who would later become a fellow Titanic victim) wrote several letters to his wife, Elizabeth, and to his business partner, Walter E. Bigelow in which he related that while he and John Maguire (another Massachusetts businessman) had enjoyed good health, George Clifford "had been in very poor health during the last three weeks". Not only does this effectively explain his reason for taking out extra life ensurance, but it also accounts for the surprising absence of survivor accounts which mention him.
Hope the above is of interest.
Best,
Ben