Which child of writer Loudon Snowden Wainwright Jr spent time performing in Greenwich Village? 
Loudon Wainwright Jr.:  He was the father of folk singer Loudon Wainwright III and singer Sloan Wainwright, and grandfather to Rufus Wainwright, Martha Wainwright, and Lucy Wainwright Roche. Sloan Wainwright:  Her musical style consists of a combination of folk, rock, jazz, and blues, an approach which owes itself to her time writing and performing throughout Greenwich Village.
i don't know