Here is a quote from an announcement at https://sos.tn.gov/news/state-library-archives-launches-new-digital-project-revolutionary-war:
“As our nation prepares to celebrate Independence Day, the Tennessee State Library & Archives has launched Patriot Paths, a new project that uses Revolutionary War pension records to map the paths that these soldiers took before and after their service. The project, which is still in progress, was unveiled by State Librarian and Archivist Chuck Sherrill at the National Genealogical Society’s recent annual convention.
“Thousands of veterans flooded into Tennessee at the conclusion of the war, and about 2,000 pension files exist for those who came here. Since most of the soldiers were not eligible for a pension until they were in their 80s, the number who received a pension was relatively small compared to the number who served.
“Staff and interns at the Library & Archives pored over those pension files to find the dates and places where the soldiers were born, married, enlisted and died. Soldiers who had been born throughout the colonies and even Europe ultimately made their way to Tennessee. After the war, many crossed the mountains from Virginia and North Carolina, but some came from as far away as New York and Massachusetts.
“That information was added to a database and then coordinated with GIS mapping software. The result is Patriot Paths, where historians and genealogists can search for veterans and study the patterns of migration.”
You can read the full announcement at: https://sos.tn.gov/news/state-library-archives-launches-new-digital-project-revolutionary-war.