found: Ballistic missile defense, c1984:CIP t.p. (Ashton B. Carter) foreword (res. fellow, Center for International Studies, MIT)
found: Wikipedia, viewed 25 July 2018(Ash Carter; Ashton Baldwin Carter; born September 24, 1954; taught at Harvard University, beginning in 1986; 26th United States Secretary of Defense in office February 17, 2015 - January 20, 2017)
found: Belfer Center for Science and International Affairs website, viewed 25 July 2018(Director, Belfer Center for Science and International Affairs, Harvard Kennedy School; Belfer Professor of Technology and Global Affairs) - https://www.belfercenter.org/person/ash-carter
found: Harvard University files(appt. start date: 06/01/2017)
found: Washington post WWW site, viewed October 25, 2022(in obituary published October 25, 2022: Ashton Carter; Ashton B. Carter, a longtime adviser on nuclear and strategic policies who served as defense secretary in the last years of the Obama administration, died Oct. 24 in Boston. He was 68. Ashton Baldwin Carter was born Sept. 24, 1954, in Philadelphia. As a Rhodes Scholar, he studied theoretical physics at the University of Oxford, earning a doctorate in 1979)