In 1839 , the family moved to the Republic of Texas , where they settled in the Robertson Colony on the lower Brazos River .
Shortly after Ross 's birth , his parents sold their Iowa property and returned to Missouri to escape Iowa 's cold weather .
In 1839 , the family moved to the Republic of Texas , where parents settled in the Robertson Colony on the lower Brazos River .
Shortly after Ross 's birth , his parents sold their Iowa property and returned to Missouri to escape Iowa 's cold weather .