"Dr. William C. Patrick III spent over three decades at Fort Detrick, Maryland, the U.S. Army's base for biological weapons research. From 1951 to 1969, he developed germ agents for warfare. When the U.S. officially ended its offensive program in 1969, Patrick's work turned to germ defenses."

https://www.pbs.org/wgbh/nova/bioterror/biow_patrick.html