Donald Bowker Cook, 97, of Spring Run, PA, formerly of Hockessin, DE, passed away July 16, 2014 at home, surrounded by his loving family.
Born January 14, 1917 in Easthampton, MA, he was the son of Melvin Jesse and May Bowker Cook. He was predeceased by his beloved wife of 52 years, Elizabeth Conant Cook on March 18, 1996 and by a son, Peter Bennett Cook, on August 19, 1986.
He was a member of the Menallen Monthly Meeting of the Religious Society of Friends (Quakers), Biglerville, PA, and the Wilmington (DE) Monthly Meeting. He attended Baltimore Friends School, graduating from the Williston Academy, now the Williston Northampton School in Easthampton, MA. He graduated Phi Beta Kappa with a B.A. in Physics from Princeton University (1938), going on to earn an M.A. from Columbia University (1939). From 1939 to 1942 he held a three year fellowship in Langmuir Film Research from the Texas Company. From 1942 – 1946 he a was a research physicist employed by the Columbia University Division of Government Aided Research in development work for the Manhattan Project. During that time he headed a research group in charge of a pilot plant for the isotope separation plant at Oak Ridge, TN. From 1946 – 1950 he researched Niobium superconductivity for a PhD in Physics at Columbia University in 1950. That year he accepted a position as a research physicist for the DuPont Company in Wilmington, DE, specializing in nylon product development (hosiery and carpet fibers). In 1986, he retired to Spring Run, PA.