How does Harte bring Oakhurst to life in "The Outcasts of Poker Flat"? What are some details that reveal the most about the character?

Although Oakhurst is accused of no specific crimes in the
story, he nevertheless remains cool during his sentencing, and he stays silent while the
others complain as they are led from town. He is "philosophic" about the situation, and
he immediately shows his gentlemanly qualities by giving up his horse to the Duchess; he
is content to ride a "sorry mule." He does not succumb to the liquor that causes the
party to give "up their hand before the game was played out," and, instead, remains calm
as he reminisces about the way his own life has turned out. He alone recognizes the
danger in the storm clouds that forms above, yet he never considers deserting the
others. He gallantly sticks by his story that Uncle Billy had left them to "find
provisions," rather than frighten them with the truth that the drunken, old man had left
them to fend for themselves. Oakhurst's calm "infected the others," helping to make
their final hours a less terrifying time. He pretends to accompany Stimson for a short
distance to ease Piney's worry, and he thrills the Duchess with a kiss before he
leaves. His own death, though perhaps a cowardly act, is by his own hand and on his own
terms.