How old was Mary Shelley in The Strange Story of Sylvia Gray?

Helen GardnerHelen Gardner was 30 in The Strange Story of Sylvia Gray as 'Sylvia Gray / Silvery'.

Birthday: Tue, Sep 02 1884 –
Wed, Nov 20 1968

Charles KentCharles Kent was 62 in The Strange Story of Sylvia Gray as 'Henry Gray'.

Birthday: Thu, Jun 17 1852 –
Mon, May 21 1923

Mary CharlesonMary Charleson was 24 in The Strange Story of Sylvia Gray as 'Margy'.

Birthday: Sun, May 18 1890 –
Sun, Dec 03 1961

Charles EldridgeCharles Eldridge was 60 in The Strange Story of Sylvia Gray as 'Uncle Adam'.

Birthday: Tue, Jul 25 1854 –
Sun, Oct 29 1922

Gladden JamesGladden James was 26 in The Strange Story of Sylvia Gray as 'Mr. Lennox'.

Birthday: Sat, Feb 25 1888 –
Sat, Aug 28 1948

Arthur AshleyArthur Ashley was 28 in The Strange Story of Sylvia Gray as 'Vanveldt'.

Birthday: Wed, Oct 06 1886 –
Mon, Dec 28 1970

Edward ElkasEdward Elkas was 52 in The Strange Story of Sylvia Gray as 'Mr. Cohen'.

Birthday: Sat, Feb 08 1862 –
Sun, Dec 17 1933

Charles DietzCharles Dietz was >> in The Strange Story of Sylvia Gray as 'Dr. Frankenstein'.

Birthday: Unknown Birthday

Evelyn DumoEvelyn Dumo was 25 in The Strange Story of Sylvia Gray as 'Vivette'.

Birthday: Fri, Nov 30 1888

Phyllis GreyPhyllis Grey was >> in The Strange Story of Sylvia Gray as 'Lucy Reynolds'.

Birthday: Unknown Birthday

Charles L. GaskillCharles L. Gaskill was >> in The Strange Story of Sylvia Gray as 'Director, Writer'

Birthday: Unknown Birthday

Mary ShelleyMary Shelley would have been no older than 53 in The Strange Story of Sylvia Gray as 'Characters'

Birthday: Wed, Aug 30 1797 –
Sat, Feb 01 1851