Black people in baptismal ritual in James River; maybe 1930's

Title card: "All God's Chillin-Newport News, Va-They'se gittin' religion! Hundreds of followers attend fervent river baptismal ceremony" / CU African-American woman with head covered singing and clapping; pan others including preacher / WS pan crowd on shore, James River in fg / group wearing white with heads covered wading into water; pan to preacher, others in water, in boat and on shore / MS group in water clapping and singing / crowd watching as woman being baptized, preacher and man assist holding her up, dunk her and bring her up; others walk up to help hold her up / MS men walking emotional woman away from preacher, others in bg / Note: [exact year not known]