John Fund has an informative column in the Opinion Journal about Davy Crockett:

In Congress he championed the rights of squatters, poor settlers who claimed and built on undeveloped Western land but were barred from buying it if they didn't already own property. In 1830, he broke with President Andrew Jackson and opposed his Indian Removal Act because it uprooted 60,000 members of peaceful tribes and brutally forced them across the Mississippi River. "Several of my colleagues got around me, and told me how well they loved me, and that I was ruining myself," Crockett recounted in his autobiography. "I told them it was a wicked, unjust measure, and that I should go against it, let the cost to myself be what it might."

Indeed, his growing opposition to what he considered the headstrong policies of "King Andrew the First," cost him dearly. President Jackson, a fellow Tennesseean, urged Crockett's constituents to "not disgrace themselves" by re-electing him. Jackson's allies crafted a blatant gerrymander to drive Crockett from office, but he nonetheless survived. Then in 1834 he stumbled badly when he took time away from a congressional session to promote his book in a three-week tour of the Northeast. He lost his re-election bid, 51% to 49%, to a war hero with a wooden leg. He then famously told his constituents, "You may all go to hell, and I will go to Texas." He did just that and his death the next year at the Alamo ensured his place among America's heroes.

Unfortunately, the column goes more into positioning Crockett as a libertarian. It's a shame because I'd like to know more biographically. Maybe I'll have to pick up an authoritative biography somewhere. Anyone have any recommendations?

There was a biography of Sam Houston at my folks house. I picked it up and read portions of it. It was really quite interesting. I probably would have read the whole thing if I'd run across it sooner.