City of San Benito 

Corner of Sam Houston Boulevard and Rowson Street, near the railroad crossing, San Benito, TX 78586 

Approved 1971 

The History: 

Colonel Sam Robertson arrived in the Rio Grande Valley in 1903 under contract with the St. Louis, Brownsville & Mexico Railway. The following year, he partnered with James Landrum and Oliver Hicks, who agreed to sell him more than 10,000 acres of land. Robertson then broke ground on an irrigation system that used the existing resacas as water channels. In 1907, the San Benito Land and Water Company was established to manage irrigation and sell town lots, and the city’s name and post office were formalized. By 1908, settlers were steadily arriving, paving the way for the city’s incorporation in 1911. San Benito achieved full self-governance with the adoption of a home-rule charter in 1920. 

The Legacy: 

Today, the City of San Benito is a community of nearly 25,000 residents and is widely known as “The Resaca City,” named for the Resaca de Los Fresnos that serves as its main water source. San Benito celebrates over a century of cultural heritage through annual events, festivals, and its museums, and it is one of only two cities in the Rio Grande Valley with a municipal cultural arts department. The city's earliest settlers sought agricultural opportunities in the hot South Texas climate, but today, its economy is based largely on manufacturing, tourism, and trade, fueled in large part by its proximity to the U.S.–Mexico border. While San Benito continues to grow, it remains proud of the history, community, and identity that have long defined it. 

Water District Building 

216 S. Sam Houston Blvd, San Benito, TX 78586 

Approved 1997 

The History: 

On March 19, 1907, the San Benito Land and Water Company was established by Samuel Robertson, along with investors W. H. Stenger, Ed F. Rowson, R. L. Batts, and the oil-producing brothers Alba, W. Scott, and O. W. Heywood. While the company began selling land and delivered its first water soon after, it required additional capital to complete the system and construct a permanent office. By 1910, over $1 million in bonds had been sold, and by July, the new building was in use. The first floor housed the sales department and cashier, while the second floor held the engineering department, water superintendent, attorney, and the city’s telephone exchange. Persistent financial challenges led to the company’s sale in 1917 to the newly formed Cameron County Irrigation District No. 2. 

The Legacy: 

The arrival of the railroad and advances in irrigation technology allowed land developers to clear the Rio Grande Valley’s brushland and transform it into farmland. As the headquarters of the San Benito Land and Water Company and later the Cameron County Irrigation District No. 2, the building reflects the region’s shift toward commercial agriculture. During its time as the water district building, it also served as a polling place, office space, and semi-public facility. Its historical significance was recognized with a state marker in 1998. Today, the building continues to serve the public and operates as a commercial property, housing businesses like a barber shop and a self-defense academy. 

The San Benito Bank and Trust Company 

198 S. Sam Houston Blvd, San Benito, TX 78586 

Approved 1980 

The History: 

The San Benito Bank and Trust Company was chartered on December 17, 1908, with oilman and investor Alba Heywood serving as its first president until 1912. Originally located in a small brick building at 170 S. Sam Houston Boulevard, the bank later commissioned a new structure at its current site. Built by contractor L. Fleming, the building opened in 1911—the same year San Benito was incorporated—and soon became the city’s official depository. In 1956, the arcades facing Sam Houston Boulevard were removed for street widening, and renovations added a lounge, vault, and conference room. The bank closed on January 31, 1990, following its merger into Pacific Southwest Bank of Corpus Christi, which later liquidated its assets in 2001. 

The Legacy: 

In 1980, the building was awarded a historical marker following a successful application by Cameron County Historical Commission member Henry E. Agar. The unveiling ceremony included descendants of founding members and at least one attendee who recalled seeing the building shortly after it opened as a child. After the bank’s closure in 1990, the property passed through a series of owners: Coastal Bancorp by 1998, Hibernia Corporation in 2003, and Capital One Bank in 2005. Capital One operated a branch at the site until closing all Rio Grande Valley locations in 2017. In 2021, Cameron County purchased the historic building and adjacent drive-thru lanes for $500,000. While the drive-thru now serves the Tax Assessor-Collector’s Office, the former bank building remains vacant, pending renovation plans. 

The A. C. Purvis House 

441 N. Reagan St, San Benito, TX 78586 

Approved 1974 

The History: 

When Albanus Clemens Purvis moved from Ohio to the Rio Grande Valley in 1907, he first stayed at the San Carlos Hotel in Brownsville, commuting by rail to the recently established city of San Benito. That same year, Purvis built his first home near West Rowson and South Travis Streets. He bought the lots for his current home for $466.66, with the deed forbidding the sale of alcohol or the presence of a saloon. A 1976 San Benito News article, noting this restriction and the presence of eight churches within two blocks, dubbed the area “Texas’ Holy Land.” The Purvis home was completed by 1911. 

The Legacy: 

The Purvis home stands as a lasting symbol of a family deeply rooted in San Benito’s early development. Kate Purvis, Albanus’s daughter, taught at the town’s first school in 1907, while another daughter, Emma—who married prominent community member Asa Agar—became a postmistress in 1911. The family’s legacy extended through his grandson, Henry E. Agar, a longtime educator at San Benito Junior High School and a member of the Cameron County Historical Commission, who helped secure historical markers for several sites in the region. A marker was approved for the Purvis house in 1974, and the home still stands today as a quiet testament to the city’s early builders. 

Home of Col. Sam Robertson 

509 N. Sam Houston Blvd, San Benito, TX 78586 

Approved 1979 

The History: 

In 1904, railroad engineer Samuel Arthur Robertson began building an irrigation system in the lower Rio Grande Valley, laying the foundation for the City of San Benito’s establishment in 1907. In 1911, Robertson married his first wife Adele Wedegartner and purchased this lot on the outskirts of the new town. The Spanish-style home was built with materials from Mexico and architects from San Antonio, featuring thick walls and windows reinforced to serve as gun rests for defense. Following his wife’s death in 1921, Robertson focused on political and business ventures that kept him away from San Benito. After his death in 1938, his second wife, Maria Seidler, sold the home to family friend John T. Lomax in 1945. 

The Legacy: 

The Robertson home remained in the Lomax family for several decades and underwent renovations over the years, including the addition of air conditioning in the 1950s. In the late 1970s, Cameron County Historical Commission member Henry E. Agar, with Margaret E. Brown, successfully led an effort to secure a historical marker for the house. They cited its prominence in town, its distinctive architectural features, and its important role not only as the city founder’s home but also as a “citadel of refuge” from bandit threats and a site of key social events. Today, the Robertson home serves as a law office for Jeffrey L. Jackson but retains many original features and stands as a symbol of San Benito’s early history. 

Spiderweb Railroad 

909 N. Sam Houston Blvd, San Benito, TX 78586 

Approved 1982 

The History: 

By 1910, the San Benito Land and Water Company had sold most of its land near the city’s railroad tracks. However, a lack of reliable roads deterred further sales. To address this, town founder Samuel Robertson began constructing a feeder railroad so that no company-owned land would be more than two miles from a track. By 1912, the newly chartered San Benito & Rio Grande Valley Interurban Railway had completed most of his plan. Railroad magnate B. F. Yoakum later purchased Robertson’s stock and renamed the line the San Benito & Rio Grande Valley Railway. Commonly known as the “Spiderweb,” the system expanded to over 200 miles and joined the Missouri Pacific network in 1925, operating independently until 1956. 

The Legacy: 

The “Spiderweb” railroad system was essential to the early economic growth of San Benito and the Rio Grande Valley, encouraging settlement and providing farmers with access to new markets. Its importance is commemorated by historical markers in San Benito and Progreso, approved in 1982, illustrating the system’s extensive reach across the Valley. In 1997, Missouri Pacific operations merged into the Union Pacific Railroad, which continues to operate portions of the former network. Although many tracks were eventually abandoned due to improved roads and transportation, the Spiderweb continues to stand as a powerful symbol of the region’s pioneering spirit. 

San Benito Post Office 

401 N. Sam Houston Blvd, San Benito, TX 78586 

Approved 1992 

The History: 

The city’s postal service began in 1905 in the Bohner Building at the corner of Rowson and Bowie Streets, originally operating under the name “Diaz.” After the town was renamed “San Benito” in 1907, founder Samuel Robertson was appointed its first postmaster under the new name. By 1930, when the City of San Benito donated land for the construction of a permanent federal building, the post office had operated from at least three different locations. Built in the Greek Revival style by contractors Meriwether and Sauer, the new post office opened on April 16, 1933, with over 1,300 mailboxes and Floyd Worth serving as postmaster. Featuring stone trim, tall columns, and bronze lampposts, it also housed additional federal offices. Postal operations continued in the building until their relocation in 2001. 

The Legacy: 

In 1995, the San Benito Post Office received a historical marker recognizing its civic and architectural significance. After postal operations moved in 2001, the City of San Benito purchased the historic building for $75,000—well below its appraised value—and invested approximately $635,000 in restoration efforts using the city’s general fund with support from the San Benito Economic Development Corporation. City staff completed much of the renovation work. The former post office was rededicated as the San Benito Municipal Building in 2006 and now houses city government offices and hosts City Commission meetings twice a month. Its continued use as a center for civic life honors the building’s enduring legacy.