As a young man Samuel W. Allen came to the newly established Republic of Texas in 1842 in search of opportunity. He arrived at the young town of Harrisburg and soon after married into the Thomas family which had come to Texas as part of Stephen F. Austin's original colony. Using land from the Thomas grant which was located along the Buffalo Bayou between Harrisburg and Galveston Bay Sam Allen launched a cattle ranch in 1844. His cattle range extended much farther down the shoreline of the bay. Like many ranchers in Texas, Allen began his herd by gatheringLonghorn cattle, descended from Spanish cattle brought to the New World, which ran wild throughout Texas. Allen's herd grew rapidly such that by the 1860s had gained exclusive shipping rights for cattle to New Orleans and Cuba from the Morgan Lines, Texas' first steamship company, which was later to become a major factor in establishing Houston as an important Texas port and railroad shipping center.
Boom times
Allen's fortunes grew rapidly after the American Civil War. Through partnerships and acquisitions Allen's main ranch expanded and he gained ranch lands in other areas of the state. He established processing plants for cattle hides and tallow along the Buffalo Bayou near his range as well as Galveston. The Galveston, Houston and Henderson Railroad was built through the Allen Ranch in the 1850s and later the Gulf, Colorado and Santa Fe Railway and the La Porte, Houston and Northern Railroad. The ranch's docks along the Buffalo Bayou became major shipping points and helped contribute to the growth of what would become the Houston Ship Channel. The ranch even had its own private railway station known as "El Buey." Sam W. Allen's son, Samuel E. Allen, took over management of the ranch and, though some of Sam W. Allen's other business ventures failed, the Allen Ranch continued to prosper and grow. It was the largest ranch in the region and one of the largest in the state. By 1900 the Allen Ranch comprised over largely in Harris County with pastures in Galveston County and other surrounding counties. The main portions of the ranch covered much of modern Pasadena, southeast Houston, Clear Lake City, La Porte, and other areas. The Allens invested heavily in area business development, in Galveston and Harrisburg, and then later Houston. They were also wealthy socialites known throughout the region.
Modern era
Following Sam E. Allen's death in 1913, much of the family's ranch holdings were sold off to new development around Pasadena and the growing city of Houston. Sam E. Allen's son, Sam M. Allen, continued to operate the remaining portion on the main ranch in Harris County as well as the ranch lands in Brazoria County. Following Sam M. Allen's death in 1947, the remainder of the ranch was liquidated. Today many areas of Houston, Pasadena, and other cities bear names referring to the Allen family and the ranch properties.
