I'm not sure about the County of Causewell but here is some information about the "State of Franklin": http://freepages.genealogy.rootsweb.com/~snipper/wau/petitio...
"Names (clipped ) are from North Carolina State Records, Vol. 22, pp. 705-714. These residents of the State of Franklin petitioned for release from all obiligations, taxations, and duties to the North Carolina state government, which was still claiming and attempting to govern this area. The State of Franklin stretched from Shelby's Station (Bristol), east to Sycamore Shoals (Elizabethton), southwest to White's Fort (Knoxville), and southeast to Ft. Loudoun (Little Tennessee River)."
* * * * *http://www.rootsweb.com/~tnwashin/helps/genhelps.htm#history
Washington County History
The Watauga Association and Washington District
Washington County, TN, originally came under the jurisdiction of North Carolina. In 1772 settlers living south of the Holston River, on the Watauga and Nolichucky Rivers, within the boundaries of the North Carolina colony, organized the Watauga Association, giving America its first written constitution. In 1775 the Wataugans changed their name to "Washington District." The main settlements in the Washington District were Watauga, Carter's Valley, and Nolichucky.
The settlers petitioned for annexation with North Carolina. In 1777 the North Carolina legislature changed the name of Washington District to Washington County, NC. Included within the boundaries of the county was most of present-day Tennessee.
The State of Franklin
In 1784, North Carolina ceded its western (overmountain) lands to the United States to pay its part of the Revolutionary War debts with the provision that a new state would be formed from these new lands. The same men who formed the Watauga Association did not wait for the formation of the new state. They formed the State of Frankland (Franklin) and chose John Sevier as governor.
Both the State of Franklin and North Carolina's Washington County claimed the overmountain country and both had functional governments that issued marriage licenses, probate wills and deeds. North Carolina appointed Col. John Tipton as senator. The Battle of the Lost State of Franklin in 1788 at Tipton's farm was the death knell for the State of Franklin.
North Carolina ceded the state's western lands to the federal government in 1790, forming the "Territory of the Unites States, South of the River Ohio" (Southwest Territory). The area included all of that which became the state of Tennessee. President George Washington appointed William Blount as governor. Blount lived with the William Cobb family at Rocky Mount (in Sullivan County near the Washington County line) for a short time before moving to Knoxville. Census taken in 1795 indicated a population of 77,262. A vote for statehood was taken and the State of Tennessee was admitted into the Union by the U.S. Legislature on June 1, 1796.
Washington County Topography and Migration Patterns
Washington County, located in northeast Tennessee, is about 15 miles south of Virginia and 10 miles north of North Carolina. The Nolichucky River courses through the southern end of the county, and the Watauga River forms the northeast boundary of the county.
As Washington County, NC and the mother county of Tennessee, Washington County gave rise to Sullivan County, 1779; Greene County, 1783. After statehood, Washington County gave rise to Carter County, 1796. Southern portions of Washington and Carter counties formed Unicoi County in 1875. Because of boundary changes, the researcher needs to be mindful of these and other neighboring counties when looking for ancestors.
Frequently Asked Questions about Washington County
Question: Is Washington County, NC the same as Washington County, TN?
Answer: Washington County was first organized as Washington County, NC before Tennessee became a state in 1796. Washington County, NC of the 1700's should not be confused with Washington County, NC of today which is located in eastern North Carolina near Greenville NC.
Question: Jonesboro or Jonesborough?
Answer: When the town was established in 1779, the spelling was "Jonesborough". In the 1870's the spelling "Jonesboro" was adopted and used for more than 100 years. In 1983 citizens of the town voted to put the -UGH spelling back into "Jonesborough".
Question: Is there more than one Asbury Community in Washington County?
Answer: Two Asbury Communities are in Washington County. One is inside the city limits and the other is in the lower end of Washington County near the Nolichuckey River.
Question: Who in Washington County designed the Tennessee state flag?
Answer: LeRoy Reeves, Third Regiment of the Tennessee Infantry, designed the Tennessee state flag. The three white stars represent the three grand divisions of Tennesse. They are bound together by the endless circle of the blue field, the symbol being three bound together in one -- an indissouble trinity. The flag was adopted in 1905. LeRoy Reeves in buried in Oak Hill Cemetery, Johnson City, TN.
Question: Where are the papers for the Lost State of Franklin?
Answer: THE JOURNAL OF EAST TENNESSEE HISOTRY, Number Sixty-Nine, 1967 p.84 has an article by Ned Irwin, Archivist, Archives of Appalachia, East Tennessee State University entitled, "The Lost Papers of the 'Lost State of Franklin'" that gives useful information about the papers.
I hope that will give you some help