MILL VALLEY, Calif. — Singer Ronnie Gilbert, a member of the influential 1950s folk quartet the Weavers, has died. She was 88.

Her longtime partner, Dona Korones, says Gilbert died of natural causes Saturday.

With the Weavers, whose other members were Pete Seeger, Lee Hays and Fred Hellerman, Gilbert helped spark a national folk revival by churning out hit recordings of “Goodnight Irene,” “On Top of Old Smokey,” “If I Had A Hammer,” “Kisses Sweeter Than Wine” and “Wimoweh.”