You could write to the National Headquarters of the Daughters of the American Revolution and ask for the lineage papers of the any Dale men or women who were involved in the American Revolution.
Also, I know that Betsey Dale Holleman, and her husband, John Holleman, are presently residing in the Natchez, Miss area and that John Holleman is practicing law in Concordia Parish, Louisinaa, and also there are some Dale family members residing in Natchez, MIss, maybe you could try to contact one of those members and also you could contact the Daughters of the American Revolution Chapter in Natchez, MIssisisippi or the chapter in Corncordia Parish, Louisiana, which is Vidalia, Louisiana,
Hope that this information helps you,
If you need more information contact me at my email, MsNovelist@hotmail.com,
Hope this helps you in your genealogy search,
kitty