That most northern, fractious and rebelliously-inclined of those northern provinces of the nation of Mexico was in ferment in the 1830s, some of which might be chalked up to the presence of settlers who had come to Texas from the various United States looking for land. Texas had plenty of it to go around, and a distinct paucity of residents. Entrepreneurs, such as Stephen Austin’s father were allotted a tract of land, based upon how many people they might induce to come and settle on it, to build houses and towns, businesses and roads. All they need to do was to swear to a new allegiance – initially to the King of Spain, later to the Mexican government, which was making tentative and eventually unsuccessful efforts to model itself after the United States’ experience in democracy. Oh, and convert to Catholicism, at least on paper, although most American settlers were assured that they would be left alone thereafter, as afar as matters religious.

Texas was thinly settled, and a long, long way from the seat of authority in Mexico City anyway. So, Americans trickled in over two decades; undoubtedly many like Stephen Austin were honestly grateful for the free land and consideration from the Mexican authorities, and initially had no thought of trafficking in rebellion. Probably equal numbers of Americans did have an eye on the main chance in coming to Texas, as the initially small and poor United States spilled over the Appalachians, purchased a great tract of the continent from the French, and began to think it was their unique destiny to reach from sea to shining sea.

But the land drew them – and it was a beautiful, beautiful place, that part of Texas that forms the coastal plain. Wooded in the east, in the manner that the American settlers were accustomed to, crossed and watered by shallow rivers, a country of gently rolling meadows and hills, fairly temperate, especially in comparison to more northerly climes. Winters were mild – there was not the snow and brutal cold that forced a three or four month long halt to all agricultural and herding pursuits. The sky seemed endless, a pure clear blue, with great drifts of clouds sailing through it.

And so three men came to Texas in the 1830s, three men of different backgrounds and experience, and all of them looking for a second chance after various personal, political and business screw-ups. One more thing had they in common – they all died on a dark March morning in a single place, within the space of an hour or so.

James Bowie was the one who came first; a hot-tempered roughneck with a series of distinctly shady business dealings in his immediate past – which included slave-smuggling and real-estate fraud. He was famous for the wicked-long hunting knife which he always carried, after a particularly bloody brawl in which he had been armed with a clasp knife, which he opened with his teeth (losing one in the process) while gripping his opponent one-handed. A charismatic scoundrel, a bad-hat, a violent man, occasionally given to moments of chivalry; he does not come across as someone whose company would have been totally pleasant. It might aptly be said of him, as it was of Lord Byron, he was ‘mad, bad and dangerous to know’.

William Barrett Travis was the second; almost a generation younger, but driven by similar impulses, grandiose ambitions, and with an ego almost as big as Texas itself. He would also not have been very good company, laboring as he did under the conviction that he was meant to do great things. Moody and impulsive, somewhat hot-tempered, he had come to Texas alone, abandoning a wife and two children and set up a law practice in Anahuac, the official port of entry for Texas. He drifted into a faction opposed to the Mexican rule of Texas, and in contention with the local Mexican authorities.

Davy Crockett – who rather preferred to be known as David Crockett, as a gentleman, rather than as a simple, blunt-spoken frontiersman — was in his lifetime the most famous of the three, and also a latecomer to Texas. A politician and a personality, he was a restless spirit, never quite entirely content with where he was, or what he was doing for long. One senses that he would have been the most congenial of the three: relatively soft-spoken, adept with words – a skilled politician. He played the fiddle, and probably did not wear a coonskin cap or a fringed leather jacket; he looks quite the polished, genteel and well-dressed gentleman in the best-known portrait of him, in high collar and cravat, and well-tailored coat.

And so by different paths, they came to the Alamo, a sprawling and tumbledown mission compound, much too large to be defended by the relative handful of men and artillery pieces they had with them. They stayed to defend it, for reasons that they perhaps didn’t articulate very well to themselves, save for in Travis’s immortal letters. Bowie was deathly ill as the siege began, Crockett was new-come to the country, in search of adventure more than glory. None of them perfect heroes by any standard, then or now… but of such rough clay are legends made of.

Perhaps this speech, from the 2004 movie articulates it best, what they came for, and why they stayed.