Harold Eugene Clark (Tipton, Missouri, November 17, 1944 – Sherman Oaks, California, May 24, 1991) was an American singer-songwriter and founding member of the folk rock band the Byrds. He was the Byrds' principal songwriter between 1964 and early 1966, writing most of the band's best-known originals from this period, including "I'll Feel a Whole Lot Better", "She Don't Care About Time", "Eight Miles High" and "Set You Free This Time".
in Wikipédia