Sarah Cornwell grew up in Narberth, Pennsylvania. Her fiction has appeared or is forthcoming in publications including the 2013 Pushcart Prize Anthology, The Missouri Review, Mid-American Review, Gulf Coast, Hunger Mountain, and Alaska Quarterly Review, and has been honored with a Pushcart Prize, the 2008 Gulf Coast Fiction Prize, and finalist honors for the Keene Prize for Literature. In 2010, her screenwriting was recognized with the Humanitas Student Drama Fellowship. Sarah's debut novel What I Had Before I Had You will be published by HarperCollins in January 2014.

Sarah is grateful for support from the Michener Center for Writers at UT-Austin, where she was a James Michener Fellow, as well as the Millay Colony for the Arts, Vermont Studio Center, and Norton Island Writers Colony. She was the Spring 2012 Writer-in-Residence at Interlochen Arts Academy and a 2011 Mid-Atlantic Arts Foundation Creative Fellow for Pennsylvania State. Sarah has worked as an investigator of police misconduct, a writer in the schools, an MCAT tutor, a psychological research interviewer, a toy seller, and a screenwriter. She lives in Los Angeles.