Stated time is approximate.
A New York Times article notes that the speech delivered on this occasion by Andrew Carnegie was his first in Carnegie Hall.
"IN MEMORY OF R.L. STEVENSON: LIGHTS IN THE LITERARY WORLD MEET IN CARNEGIE HALL. THE AUTHOR, SAID EDMUND C. STEDMAN, BELONGED TO THE WORLD -- MR. CARNEGIE'S FIRST SPEECH IN THE HALL." New York Times (1857-1922), Jan 05 1895, p. 4. ProQuest. Web. 15 June 2020.