Dawn was raised on Nantucket and has been back on Island full time since 2000. Dawn graduated from UMASS, Amherst with a degree in Economics with a concentration in
Natural Resources. Dawn became a licensed real estate broker in 1998. In 1999, she lived in New Jersey, became licensed there and worked for Coldwell Banker Real Estate. Dawn has extensive knowledge in Historic District requirements and in local planning having worked for both the Historic District Commission and the Planning Board office. In 2004 she began working at Sanford Real Estate, which merger with Great Point Properties in 2008. Dawn married Michael Holdgate, a native Nantucketer and local business owner, in September of 2004, they just celebrated their 11th anniversary. They are proud parents of Kenneth Holdgate and Elissa Holdgate. Dawn served as a Commissioner on the Historic District Commission for 12 years. She is currently serving on the Nantucket Board of Selectmen. She was formerly the Chairman of the Nantucket Association of Real Estate Brokers Education Committee and a board member of Housing Nantucket.