Danielle Werner Gregoire is a lifelong Marlborough resident, her grandfather John Werner was on the Marlborough City Council in the 1950's. Her father is a Naval Reserve Veteran who was laid off from Digital after over 20 years of service when the company was bought out by Compaq. Her mother was an educational assistant and is now a Special Education secretary and has served in the Marlborough Public Schools for nearly 20 years.

Danielle graduated in the top of her class from Marlborough High School in 1997 (Marlborough public schools k-12). She graduated Cum Laude from St. Anselm College with a Bachelor's Degree in Criminal Justice. She attended law school at night while working full time for Rep. Stephen Leduc. She graduated from Suffolk University Law School  in 2006 and passed the Massachusetts Bar. She is a member of Pi Gamma Mu International Honor Society for the Social Sciences.

She has been working in the State House for nearly five years serving the people of Berlin, Marlborough and Southborough as Legislative Aide to former State Representative Stephen Leduc. . 

She is a member of the Marlborough Democratic City Committee, the Marlborough Medical Reserve Corps, the Marlborough Holiday Helper Program, Youth Commission, and the recycling committee.