I didn't see this thread:

Balladier Trevor Lucas born on 12/25/1943, Bungaree, Victoria, Australia. (Died of a heart attack Sydney Feb 4, 1989) Moved back to Australia after his wife, Sandy Denny's death.

Other not named, non-folkish but sort of interesting:

theologian Franz Rosenzweig b1886 (d1929)
Clara Barton b1821 (d1912)
tromboneer Kid Ory b1886 (d1973)
Robt Ripley b1893 (d5/27/1949)
cosmetician, philanthropist Helena Rubinstein b1870 (d4/1/1965)
Anwar Sadat b1918