An orator, or oratist, is a public speaker, especially one who is eloquent or skilled.
An orator giving a speech at a keynote in Prague.
Frederick Douglass was an American social reformer, abolitionist, orator, writer, and statesman. He became the most important leader of the movement for African-American civil rights in the 19th century.
Anna Murray Douglass, Douglass's wife for 44 years, portrait c. 1860
Frederick Douglass, c. 1840s, in his 20s
The home and meetinghouse of the Johnsons, where Douglass and his wife lived in New Bedford, Massachusetts