David and Mary A. McBrayer

In 1850 in Chickamauga, Walker, Georgia, living in the home of William McBrayer and his wife, Sarah (Dye), are a David McBriers and a Mary A. McBriers. David being born in 1825 in North Carolina and his wife, Mary A. being born in 1832 in Georgia. David could possibly be a son of William, but I have not seen the 1840 census for William to see if he had a son David's age. If he was William's son, then he was born before William's marriage to his first wife, unless she was already pregnant or David's age is off in the record or William had a wife before Drucilla.

I have found a possible child for David and Mary: Emmarilla McBrayer, who was born in 1859. Her death record is as follows:

Name Emmarilla Mcbrayer Cooley
Event Date 01 Sep 1933
Event Place Akron, Hale, Alabama
Gender Female
Age (Original) 74y 3m 28d
Birth Year (Estimated) 1859
Spouse's Name John W. Cooley
Father's Name David Mcbrayer
Mother's Name Mary Ann Bowman
"Alabama Deaths, 1908-1974,"

I cannot locate David and Mary on any other census record, not can I find Emma in any census records before she married.

Who are David and Mary and where do they fall into the McBrayer family??

Sources:

1850 Census:  Chickamauga, Walker, Georgia

Alabama Deaths, 1908-1974 - Emmarilla McBrayer Cooley