Texas Historical Marker

Home of Col. Sam Robertson

Cameron County · placed 1979

Hear Duane tell it

Cameron County, Texas

Duane's take

Here's how the official marker tells it, and I'm gonna give it to you straight with a little room to breathe. Sam A. Robertson — born in 1867 — looked out at the Rio Grande Valley and didn't see scrubland.

He saw farms. He saw futures. He saw a town that didn't exist yet.

So in 1904, he went ahead and started one. Called it San Benito. Now, Robertson wasn't some dreamer with soft hands.

He was a wealthy civil engineer and a builder, and he came at that valley like a man with a blueprint and no intention of stopping. He didn't just found a town — he became its Sheriff. Its first Postmaster.

He dug irrigation canals and laid down a railroad network that connected those Valley farms to produce markets, threading the whole region together like he was lacing up a boot. And if that wasn't enough, he had his eye on Padre Island too, running a development out there, plus Del Mar — a recreational area he built out at Boca Chica. The man had range, I'll give him that.

Then in 1911, Robertson and his wife Adele built this house right here. And friend, they did not build it dainty. Thick walls.

High windows. Because the border in those days had a restless quality to it — marauding bandits crossing over and making life complicated for anyone who'd put down roots. This house wasn't just a home.

It was a fortress. Robertson lived all of that — the canals, the railroad, the sheriffing, the whole San Benito story — until 1938. In 1945, the house was sold to John T.

Lomax. Two names on one house, and between them, the whole arc of a Valley built from nothing. Not bad for a civil engineer who just liked what he saw.

What the marker says

San Benito was begun in 1904 by Sam A. Robertson (1867-1938). A wealthy civil engineer and builder, he saw farming potential in the valley. He became Sheriff and first Postmaster. He built irrigation canals and a railroad network that connected farms with produce markets. He started a Padre Island development and Del Mar, a recreational area at Boca Chica. In 1911 Robertson and his wife Adele built this house. With thick walls and high windows, it served as a fortress against marauding bandits from across the border. In 1945 the house was sold to John T. Lomax.

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