The oldest known recording of the song, under the title "Rising Sun Blues", is by Appalachian artists Clarence "Tom" Ashley and Gwen Foster, who recorded it for Vocalion Records on September 6, 1933. Ashley said he had learned it from his grandfather, Enoch Ashley. Roy Acuff, an "early-day friend and apprentice" of Ashley's, learned it from him and recorded it as "Rising Sun" on November 3, 1938. Several older blues recordings of songs with similar titles are unrelated, for example, "Rising Sun Blues" by Ivy Smith (1927) and "The Risin' Sun" by Texas Alexander (1928).

Answer this question based on the passage: who recorded house of the rising sun first? Let's have some stream of consciousness first.
The relevant information is: The oldest known recording of the song, under the title "Rising Sun Blues", is by Appalachian artists Clarence "Tom" Ashley and Gwen Foster, who recorded it for Vocalion Records on September 6, 1933. So, the answer is Appalachian artists Clarence '' Tom '' Ashley and Gwen Foster.