ROGER E. KNAPPE, a pharmaceutical chemist, died Mar. 17, 2017. He was 89. A member of Delta Tau Delta, he served in the U.S. Navy during the Korean War. After serving in the Pacific, he returned to his career as a pharmaceutical chemist and worked for American Cyanamid for more than 40 years. He was also an avid sailor. Predeceased by his wife, Margaret Gallagher Knappe, survivors include five sons, seven grandchildren, and his sister.