Galveston County, Texas who supported the United States in the Revolutionary War. Galveston County was formally established under the Republic of Texas on May 15, 1838. The county was formed from territory taken from Harrisburg, Liberty, and Brazoria Counties, with governmental organization taking place in 1839. The island and city of Galveston was by far the most important population center. The city of Galveston was the republic's largest city and its center of commerce and culture. Port Bolivar on the Bolivar Peninsula was a port of secondary importance. Other development in the area was initially mostly ranching interests and small farming communities. Texas
Galveston Island would hold until nearly the end of the 19th century. Galveston for a time before the American Civil War was the largest cotton shipping port in the world and the second-largest port for immigration in the United States. In the mid-19th century, it was a major port of entry for the many Germans who entered the state. During the Civil War, the Union army seized control of the island from the South for a few months during early 1863. Confederate forces commanded by John B. Magruder expelled them from the island, and the Confederates controlled it for the remainder of