Mary Virginia Skinner (May 24, 1925 – March 2, 2015), known professionally as Jenna McMahon, was an American writer, producer, actress and comedian.

She was best known for her Emmy Award-winning work as a writer on the variety/sketch comedy program The Carol Burnett Show and for co-creating the television sitcoms It's a Living, The Facts of Life, and Mama's Family along with her writing partner Dick Clair.

[1] Relocating to West Hollywood, McMahon opened a playhouse and was teaching acting when she met Dick Clair in 1961.

[1] McMahon and Clair contributed the story for the final first-season episode of the NBC sitcom Diff'rent Strokes, which served as the springboard for their series The Facts of Life.

McMahon and Clair then co-created It's a Living with Stu Silver; this series aired on ABC for two seasons and in first-run syndication for another four.