This event is in the "Adults" group. People Making History - Professor Adolphus Greely: The Signal Corps' Renaissance Man 7:00pm - 8:00pm Adults Presentation This event is in the "Adults" group. Feb 8 2024 Thu People Making History - Professor Adolphus Greely: The Signal Corps' Renaissance Man 7:00pm - 8:00pm Presentation Please note you are looking at an event that has already happened. Library Branch: Leavenworth Public Library Room: Art & Lucille Jahn Meeting Room Age Group: Adults Program Type: Presentation Event Details: Mr. Dirk Riggenberg explores Greely's fascinating life. In March 1887, Greely was serving as a captain when President Grover Cleveland appointed him as the Army's Chief Signal Officer with the rank of brigadier general.