Samuel Phipps, Sr. - Samuel Phipps family

Samuel Phipps, Sr 1762 Guilford, Orange, NC-Apr 6, 1854 was considered a DAR Revolutionary War Patriot #A103588 and served as a soldier under Capt James McDaniel of Virginia Montgomery Co, Militia>
He had a daughter named Elizabeth Phipps 9/18/1776 but her mother's name is not known
Samuel later married Elizabeth Reeves 1765 Orange,NC-1850 Alleghany, NC on the date of July 5, 1784 in Niles, NC. They had at least 7 children...
John Phipps c1784
William George Phipps 1785
Samuel "Jesse" 1788
Isaiah about 1790
Benjamin 1795
George 1796 and
Joseph F. Phipps abt. 1797

The question is about who the mother was for Elizabeth born in 1776. There is a good chance that Elizabeth's mother was a Cherokee woman. Elizabeth Phipps married Joel Hold in NC about 1786 and at least one of their daughters was said to have the native name of "Morning Dawn" This was , Rachel (Morning Dawn-Doctor Lady) Holt born c1800 in NC and married to George R. Buckalew, Jr. She and her siblings would then have been 1/4 blood Native-American.

Any information that might help to provide further information about this native connection would be greatly appreciated.