She inherited title when her father died on 14 June 1927, and acquired the name Hathaway upon her second marriage in 1929. Her tenure as Seigneur was interrupted by German occupation of the island during World War II, from 3 July 1940 until 11 May 1945. Hathaway is noted for not evacuating during the German occupation, and prevailing upon all 471 Sark inhabitants to remain on the island as well.
Hathaway commissioned the design of the flag of Sark in 1938. It was also her decision that no cars be allowed on Sark, a rule that continues to the present.
She is the subject of a play based on the experience of the German occupation, called The Dame of Sark. Upon her death the Seigneurship passed to her grandson, John Michael Beaumont.
Quote
Smile, damn it! Smile.
Preceded by:
William Frederick Collings
Seigneurs of Sark
Succeeded by:
Herdt
Preceded by:
Johann Hinkel
Seigneurs of Sark
Succeeded by:
John Michael Beaumont