Ellison grew up in Colorado and moved to Virginia during high school. She is a graduate of Randolph-Macon Woman's College and received her master's degree from George Washington University. She was a presidential appointee and worked in The White House and the Department of Commerce before moving into the private sector. As a financial analyst and marketing director, she worked for several defense and aerospace contractors.
Ellison is a member of several professional writing organizations, including International Thriller Writers, Mystery Writers of America and Romance Writers of America. She has an active following on Twitter under the name @Thrillerchick, and a robust Facebook community.
She lives in Nashville with her husband and a poorly trained cat.