Black History Oh Freedom, After Awhile. A sharecropper's history. Dr. Greene influenced university students to help the sharecroppers of 1939. African-American History and Culture Lorenzo Johnston Greene: A Registry of His Papers 1899 births 1988 deaths American diarists 20th-century American historians American male non-fiction writers People from Ansonia, Connecticut 20th-century American male writers Lincoln University (Missouri) faculty Howard University alumni Columbia University alumni Historians from Missouri African-American historians 20th-century diarists 20th-century African-American writers