I recommend that you locate a copy of Snead Notebook, compiled by Elizabeth Cowan Snead Shue, printed by Gateway Press, Inc., Baltimore, 1991. It may be available to you through your library, or you may be able to purchase it on line. If you exhaust those sources without success, post another message and we will explore how I can help.
If the Shue book is correct, then it appears to me that you may be mingling the descendants of Israel and Samuel Snead. Both moved to NC from the Cub Creek drainage in Louisa County, VA in the 1750's. It seems likely that they were brothers, based on location, age and activities. There are records of both men, and the families their wives came from, in the Louisa records. See the deedl list at www.trevilians.com
The Shue book lists children of Samuel and Temperance Burford as:
all born between 1751 and 1767.
The Shue book lists children of Israel and Johanna Henley as:
Henley (Henley's children include Absolum, Henley and Daniel)
Hope this helps,