Clean-up marchers Woman walking with group of interracial children, some carrying pennants and signs reading, "Join up -- Let cleanliness be your hobby"; storefronts, parked automobiles, and onlookers in background. Caption: "Clean-up marchers -- Mrs. Edna Rosenblum, chairman of Williamsburg-Greenpoint District Health Committee leads a group of Williamsburg youngsters at Bushwick Ave. and Cook St., in a campaign to clean up their neighborhood."