How old was Edith Johnson in The Circular Staircase?

Eugenie BessererEugenie Besserer was 46 in The Circular Staircase

Birthday: Thu, Dec 24 1868 –
Mon, May 28 1934

Guy OliverGuy Oliver was 36 in The Circular Staircase

Birthday: Wed, Sep 25 1878 –
Thu, Sep 01 1932

Stella LeSaintStella LeSaint was 33 in The Circular Staircase

Birthday: Sat, Dec 17 1881 –
Tue, Sep 21 1948

Edith JohnsonEdith Johnson was 21 in The Circular Staircase

Birthday: Fri, Aug 10 1894 –
Sat, Sep 06 1969

Anna DodgeAnna Dodge was 47 in The Circular Staircase

Birthday: Thu, Oct 17 1867 –
Fri, May 04 1945

Edward LeSaintEdward LeSaint was 44 in The Circular Staircase as 'Director'

Birthday: Tue, Dec 13 1870 –
Tue, Sep 10 1940

Mary Roberts RinehartMary Roberts Rinehart was 39 in The Circular Staircase as 'Novel'

Birthday: Sat, Aug 12 1876 –
Mon, Sep 22 1958