found: Baltimore sun WWW site, viewed March 5, 2018(in obituary dated March 4, 2018: Charles A. Harper, a chemical engineer who worked on projects for NASA, died Feb. 26 at Brightview Mays Chapel Ridge retirement community [Timonium, Md.]; he was 91; born in in Ridgeley, W.Va., just over the Maryland border; got a job at Westinghouse Electric Corp. at Point Breeze working with plastics material; began as a senior engineer and worked his way up to department manager and project manager; co-founder and first president of the International Electronics Packaging Society; led a merger of that organization with another to create the International Microelectronics and Packaging Society; became a recognized leader in the field of electronic packaging; in 1985, Mr. Harper and a business partner started a company in which they offered seminars around the world; he gave lectures on electronic packaging throughout Europe, Asia and North America)