For more information about the Four Flags Chapter, NSDAR, or on becoming a member, please contact us. Give us a little time, and we will get back to you. Remember, if you do not know whether you have an American Revolutionary War Patriot in your family tree or if you need help with your research, we will be glad to assist you. For membership, qualifying service includes more than military service between April 19, 1775, and November 26, 1783. NSDAR Accepted Revolutionary War Service has more information on the accepted types of patriotic service.