In 1971 she graduated from New York University, where she earned a B.A. in fine art.
From 1971 to 1979 she worked in graphic design in New York City.
In 1979 she moved to Ithaca, New York with her husband Jim Blythe. Here she started a successful graphic design business which specialized in not-for-profit organizations.
In 1992, Sheila and Jim moved to Memphis, TN, where Jim landed a job as a medieval history professor. Here she phased out her graphic design business and started painting full time. Shortly thereafter she developed an intense interest in writing and has been writing ever since.
In 2006 she started working closely with master fiction editor, Renni Browne, coauthor of the classic, Self-Editing for Fiction Writers who helped her write her first book, The Coney Island Book of the Dead, An Illustrated Novel and a second novel, The Time Artist. She also writes short stories and paints.