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Clancy and Marianne Mann

July 4, 1935 – March 3, 2024

May 2024


Dr. Clarence ‘Clancy’ Mann was born on July 4, 1935, in Los Angeles, California, and passed away peacefully on March 3, 2024, in Mitchellville, Maryland. Raised in Evansville, Indiana, he was the loving son of Clarence and Leona Mann, and loyal brother to Carol Higgs and the late Phyllis Wendland. He received a B.A. (Summa cum laude) from Wabash College; a L.L.B and M.A. in Economics from Yale University; and his Dr. jur. (Magna cum laude) from the University of Bonn. In 1956, he met Mary Ann Taylor Mann, his beloved wife of 64 years. He was a devoted husband, father and friend and cherished spending time with his family while experiencing many different cultures as they traveled abroad. He exemplified respect, honor, and a profound sensitivity to the needs of others. An attorney with 20 years of corporate law practice, he served as General Counsel of Sears Roebuck’s International Operations (Chicago, IL). He dedicated an important part of his life to the Institute of Cultural Affairs (Chicago, IL), championing for citizen participation in community and human development. As CEO of Appropriate Technology International (ATI) (Washington, DC), he implemented the commercialization of technology to increase employment, income, savings, capital formation and the productivity of those in less developed nations. His career culminated as Professor and Associate Chair, International Programs for the University of Maryland University College (UMUC). In addition to Mary Ann, Clancy is survived by his children: Eric William Mann, Jennifer Mann Hillman, and Matthew Taylor Mann, their spouses, and his seven grandchildren.