Susan Keating Glaspell (July 1, 1876 - July 28, 1948) was an American playwright, novelist, journalist and actress. With her husband George Cram Cook she founded the Provincetown Players, the first modern American theatre company.Glaspell is known to have composed nine novels, fifteen plays, over fifty short stories, and one biography, often set in her native Midwest, these semi-autobiographical tales typically explore contemporary social issues, such as gender, ethics, and dissent, while featuring deep, sympathetic characters who make principled stands. Her 1930 play Alison's House earned her the Pulitzer Prize for Drama.In the early 21st century she is today recognized as a pioneering feminist writer and America's first important modern female playwright. Her one-act play Trifles (1916) is frequently cited as one of the greatest works of American theatre. She remains, according to Britain's leading theatre critic Michael Billington, "American drama's best-kept secret."