She's at Wikipedia Dawn Wells - Wikipedia
Article at Reuter's ... Actress Dawn Wells, castaway Mary Ann on TV's 'Gilligan's Island,' dies from COVID-19 | Reuters
Born in Reno, NV; age 82 at death; “Gilligan’s Island” ran for three seasons (1964–1967) with a cast that also included Bob Denver as the zany Gilligan, Alan Hale Jr. as “The Skipper,” Jim Backus as millionaire Thurston Howell III, Natalie Schafer as his posh wife, Russell Johnson as “The Professor,” and Tina Louise as movie star Ginger.
The death of Wells leaves Louise, 86, the sole survivor of these cast members.
Thank you Susan