In July 1969, Mr. Greenwood made a long technology survey trip across USA and Europe.
The route was Los Angeles, San Francisco, Oklahoma City, Chicago, Washington DC, Boston, New York, Allentown, London, Paris, Munich, Copenhagen, Stockholm, Frankfurt.
In San Francisco, he revisited his relatives and enjoyed sailing together.
Sailing in San Francisco Bay in the late Dr. Nieda's boat. Photo taken in July 1969
 Dr. Wang at Air Products |
 Mr. & Mrs Spencer |
When Mr. Greenwood visited Washington DC in the week end. It was just after assassination of president Kennedy. He remember small flame burning in Arlington National Cemetery.
He was also impressed huge Building in Capital hill.
January 26, 2006