Margery Land May Mason Foster Simonsen (14 January 1897 – 13 May 1932) was an American novelist, short story writer, and screenwriter.

She attended Sophie Newcomb College and Columbia University.

[1] While still a college student, she published her first short story, "Confessions,” in H.L.

Her second husband, attorney James Martin Foster, died in 1928.

She was divorcing her third husband, Stanley Llewellyn Simonsen, at the time of her death.