How did Father Hidalgo’s letter lead to the establishment of Spanish missions and fort in East Texas? Did his letter have a successful effect on East Texas?

Francisco Hidalgo, the most patient and persistent advocate of missions among the Indians of East Texas, was born in Spain in 1659. Circumstantial evidence suggests that he was orphaned early. At the age of fifteen he received the religious habit of the Franciscans. After ordination he joined twenty-three of his brethren, who crossed the Atlantic in 1683 to help found the missionary College of Santa Cruz de Querétaro. At that time, Hidalgo was a twenty-four-year-old priest.

the constitution gives congress the power to regulate commerce "among" the several states.