I am looking for information on Clifford Hewitt (1869-1942). He was a technical expert and perhaps an engraver at the U.S. Mint -- he set up the Manila Mint in the Philippines. Later he became technical expert at the Shanghai Mint in China. I would like to know his exact name. Some say it was really Clifford R. Hewitt, others say R. Clifford Hewitt. He left the Shanghai Mint in 1933 -- what did he do afterwards?