Here's an attempt at a map of routes and settlements in north Texas prior to the Civil War. You'll see I'm supposing that there were at least two routes down fro the Oklahoma border. Most older trails were really trail systems with multiple routes. We know there were multiple fords of the Red River.
This is a pretty big file, 2+ mb:
TAC Draft map of Shawnee Trail routes through North Texas showing early settlements
/ted
This is a pretty big file, 2+ mb:
TAC Draft map of Shawnee Trail routes through North Texas showing early settlements
/ted