This project is open to all males with the surname Bradt (and variants), including Van Derzee and Van Bradt. Although I started this project to determine if I was indeed a Bradt, it has become a true Bradt Family project, with many possibilities. Unknowns can and have been tested to see if they carry the Bradt DNA signature. Three were successful, one was not, but regardless of outcome, they now know the answer.