Henderson — known to TV audiences as beloved matriarch Carol Brady on "The Brady Bunch" — began her career on the stage appearing on Broadway in Wish You Were Here and Oklahoma! before originating the title role in 1954's Fanny opposite Ezio Pinza and Walter Slezak (who earned a Tony Award win for his role).
Here are some shots of Henderson backstage with her Fanny successor Elena Shaddow (top left) and Encores cast members Priscilla Lopez (top right) and Ted Sutherland (bottom):