Sadler is on U.S. Highway 82, Farm Road 901, and the tracks of the Missouri, Kansas, and Texas line. It is twelve miles northwest of Sherman in west central Grayson County. The area was settled in 1869 by A. J. Cross, who was soon joined by other such pioneers as Zeke Hall and Jim Beach. The community proper developed around 1878 when John Sadler, a local landowner for whom the town was named, donated land for a right-of-way to entice officials of the Missouri, Kansas, and Texas to extend the railroad tracks to the settlement. Sadler remains a small community, quiet and spacious a perfect place to settle and relax.