TSHA; Unionism.
From the 1840s to the 1870s the nature of the United States and the relationship of Texas to the United States dominated Texas political discussion. Those who defended the United States and advocated stronger or continued ties with their country were called Unionists, and they were opposed by Texas nationalists, secessionists, and Confederates. By the 1850s, when the population of Texas had grown enormously and when the details of annexation had been clearly worked out, most Texans were Unionists. In the 1850s Texans supported the Union because it could better protect the frontier, provide a more stable climate for economic development, and protect existing social and legal relationships. Texans also supported the Union for less pragmatic reasons. Unionism grew from habit and from the almost religious zeal with which some viewed their country. Memories and shared experiences common to Americans, such as the American Revolution and the War of 1812, perpetuated the habit and contributed to the zeal. Party ideology and point of origin also contributed to this Unionism of the heart. In general Whigs from the border states and German refugees of the 1848 revolution were among the most persistent Unionists. Close identification with symbols of the nation, such as Sam Houston's affinity for Andrew Jackson, also contributed.
TSHA: Secession.
Like other cotton-growing and slaveholding states, Texas seceded from the Union in early 1861 and joined the Confederate States of America. Texas was the seventh state to secede and the last to secede before the firing at Fort Sumter signaled the start of the Civil War and forced citizens of the upper South to choose between fighting against or with their Southern brethren. The election of a Republican, Abraham Lincoln, to the presidency of the United States and fears that Republican control of the executive branch would threaten slavery and the traditional rights and liberties of Americans precipitated the secession crisis in Texas and elsewhere. South Carolina's decision to secede in December 1860 further encouraged Texas secessionists. Some Texans were slow to accept secession, however, or never accepted it. They did not simply react to the election of Lincoln and emulate South Carolina. Indeed, the timing of the secession of Texas and the motivation behind it are of continued interest because they open up a series of questions about the nature of the Texas economy, the population, political parties, local needs, the role of such Unionists as Sam Houston, and the effects of public