Later Houston studied law and began a successful practice. He became so popular in Tennessee that the people elected him to many positions of honor and trust, the last of which was that of governor. About that time he was married, but a few weeks later he and his wife separated. Then, suddenly and without giving any reason for his strange conduct, he left his home and his State and went far up the Arkansas River to the home of his early friends the Cherokee Indians. The Cherokees had been removed to that distant country, beyond the Mississippi, by the United States Government. About a year later Houston, wearing the garb of his adopted tribe, went in company with some of them to Washington. His stated purpose was to secure a contract for furnishing rations to the Cherokees. But another purpose was in his mind. He had set his heart on winning Texas for the United States. Perhaps he talked over the scheme with his friend, President Jackson. However that may be, we know that some three years afterward Houston again left his Cherokee friends and went to Texas to live. His desire to secure this region for his country was as strong as ever. [Illustration: Scene of Houston's Campaign.] At that time Texas was a part of Mexico. Already before Houston went down to that far-away land many people from the United States had begun to settle there. At first they were welcomed. But when the Mexicans saw the Americans rapidly growing in numbers they began to oppress them. The Mexican Government went so far as to require them to give up their private arms, which would leave them defenseless against the Indians as well as bad men. Then it passed a law which said, in effect, that no more settlers should come to Texas from the United States, so that the few thousand Americans could not be strengthened in numbers. [Illustration: Flag of the Republic of Texas.] Of course, the Texans were indignant, and they rebelled against Mexico, declaring Texas to be an independent republic. At the same time they elected Houston commander-in-chief of all the Texan troops. This began a bitter war. The Mexican dictator, Santa Anna, with an army four or five thousand strong, marched into Texas to force the people to submit to the government. The first important event of this struggle was the capture of the Alamo, an old Texan fortress at San Antonio. Although the garrison numbered only one hundred and forty, they were men of reckless daring, without fear, and they determined to fight to the last. DAVID CROCKETT Among these hardy fighters was David Crockett, a pioneer and adventurer who had led a wild, roving life. He was a famous hunter and marksman and, like some of our other frontiersmen, was never happier than when he was alone in the deep, dark forests.