Complex sentence: Freida Joy Riley (1937--August 5,1969) was an American science and math teacher who taught at Big Creek High School in War, West Virginia during the late 1950s and early 1960s while suffering from Hodgkin's disease.
Split into simpler sentences: Freida Joy Riley (1937--August 5,1969) was an American science and math teacher. She taught at Big Creek High School in War, West Virginia during the late 1950s and early 1960s while suffering from Hodgkin's disease.