Georgetown's Charles Denby, a student from 1841-1844 and honorary degree recipient in 1885, was appointed Minister to China by President Grover Cleveland in 1885. He served until 1898 and is one of the longest serving U.S. envoys to China since the first U.S. envoy was appointed in 1843. Denby was an influential arbiter between China and Japan during the Sino-Japanese War in 1895.
No. Georgetown, founded in 1789, is the oldest Catholic university in the United States. Saint Thomas University in Bogotá, Colombia was founded in 1580, and is likely the oldest Catholic university still in operation in America.