From the Annals of O’ Pioneers –  In 1825, Dr. Felix Robertson and 32 men left Nashville, Tennessee for Leftwich’s Grant.  Robert Leftwich had belonged to the Texas Association.  The Association was formed to by a group of Nashville investors to obtain a colonization grant from Mexico.  Leftwich had received a grant in his own name and later transferred it to the Association on the condition that it be referred to as Leftwich’s Grant.  The Robertson expedition explored the country along the Brazos, Leon, Lampasas, Salado, and San Gabriel rivers for several months before returning to Tennessee. In the spring of 1830, Sterling C. Robertson, a member of the expedition, and his partner Alexander Thomson Jr. began recruiting families to come to Texas.  However, the Mexican Law of April 6, 1830 prevented any further settlement by Americans in new areas.  Instead, the Tennesseans settled in Stephen F. Austin’s colony.  Eventually, Mexico awarded a new contract to Sterling C. Robertson as empresario and the area was called Robertson’s colony.