The National Society Daughters of the American Revolution has been collecting genealogical information since 1890 to support both the application process for membership and to honor the service of Patriots. The Society operates a marvelous library in Washington, DC. Over the last few years they have scanned and provided public access to extensive online resources.
This was presented to a live webinar audience on October 3, 2018. 1 hour 28 minutes, plus 6 pages of handouts. The recording is also included as part of the monthly or annual membership.