HistoricSiteMarkers
Progressive & Modern Era

San Benito Post Office

San Benito, Cameron County, Texas

Marker Inscription

At the time the local community was granted its first post office in April 1907 it was known as Diaz. Because another town in Texas had previously been awarded the name Diaz by postal officials, the name of this post office was changed to San Benito later that year. Colonel Samuel A. Robertson served as first Postmaster and Emma (Purvis) Agar became the first of several women postal clerks to serve in San Benito. Municipal delivery began in 1925 along two routes. The post office operated from several locations in San Benito until relocating in 1933 to an impressive Federal office building newly constructed here on park land donated by the city. The post office opened on April 16, 1933, the day after an estimated 3,000 people attended an open house to inspect the building. Also housed in the Federal building at the time of its opening were offices of the International Boundary Commission, the U.S. Departments of Agriculture and Immigration, and the U.S. Civil Service Commission. The post office served as a social gathering place for many people in the community. San Benito Post Office currently serves San Benito and the surrounding towns of Los Indios, Blue Town, Arroyo City, Lozano, Las Yescas, Laurles, La Paloma, El Ranchito, and Rio Hondo.

Erected by Texas Historical Commission

The Story

When this Rio Grande Valley community won its first post office in 1907, it was called Diaz, but because another Texas town already held that name, it was rechristened San Benito the same year. Colonel Samuel A. Robertson served as first postmaster, and Emma Agar was the first of several women to clerk there. In 1933 the office moved into a handsome new Federal building on donated park land, drawing 3,000 people to its open house and housing the Boundary Commission and federal agriculture, immigration, and civil service offices.

Why it matters

The post office traces how federal institutions knit the borderlands into national life, and how a New Deal-era public building became a town's civic gathering place.

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Related people

  • ยท Samuel A. Robertson
  • ยท Emma Purvis Agar

Themes & tags

Nearby & related markers

San Roman Building

Brownsville, TX

Raised in 1850 in the young border city of Brownsville, this building belonged to Don Jose San Roman, a native of Biscay in Spain who prospered as an importer, steamboat owner, merchant, and investor in city lots. He and his successor Feliciano San Roman helped finance the Rio Grande Railroad, tying the lower river to the wider world of commerce. Fulgencio Lopez was the last of the San Romans to run the business here.

Home of Col. Sam Robertson

San Benito, TX

Sam A. Robertson, a wealthy civil engineer who saw farming promise in the Rio Grande Valley, began the town of San Benito in 1904 and served as its first sheriff and postmaster. He built irrigation canals and a railroad network linking farms to markets, and developed recreational spots at Padre Island and Boca Chica. The thick-walled, high-windowed house he and his wife Adele built in 1911 doubled as a fortress against cross-border bandit raids during a turbulent era on the frontier.

San Benito

San Benito, TX

San Benito grew up along the Gulf Coast railroad that engineer Col. Sam Robertson pushed into the lower Rio Grande Valley in 1904, on land colonized under Mexico around 1770. First called 'Bessie' and then 'Diaz' before taking its present name for landowner Benjamin Hicks, the town gained land, water, and sugar companies in 1906 and its first school and postmaster in 1907. It was incorporated in June 1911.