Elizabeth Kemp Mead (b. 3-18-1849), daughter of (Chickasaw) Joel Kemp, testified that her father owned and operated a ferry across Red River before and after the Civil War. It came to be called Kemp's Ferry. She said a stage routinely ran by her home (built in 1857) between Fort Washita, IT and Bonham, Texas. Said it was 12 miles along the stage road from the Ferry to Bonham, where dry goods and groceries were bought, sold, and traded for with local produce. The Ft. Washita-Bonham connection with the Texas Road apparently was at Carriage Point (on a direct line of travel), for she said salt was produced there. {Source: OU's Western History Collection/Indian Histories/Interview by Lula Austin on 4-1-1933, pub. 4-2-1937, p. 418.}
MG Sterling Price's final march in Indian Territory was headed to Bonham. He reportedly crossed Red River on 11-22-64 and camped nearby (Camp 78). The next day, (11-23-64) he reportedly marched 12 miles to Bonham (for good reason, for that is where BG Henry McCulloch had his CSA HQ and supply depot for his North Texas command) and made Camp 79.
Thus, I have no doubt that Price crossed Red River on 11-22-64 at Kemp's Ferry, in the extreme southeast corner of the Chickasaw Nation, several miles east (downriver) from Colbert's Ferry on the Texas Road.