Charles Stillman and Jesús de Lira, March 25, 1852

A Merchant Letter Across the Rio Grande

Charles Stillman and Jesús de Lira, March 25, 1852

In the spring of 1852, a letter written in Matamoros, Mexico, by merchant Jesús de Lira arrived across the Rio Grande in Brownsville at the office of Charles Stillman & Co.

The letter reveals the everyday workings of frontier commerce along the lower Rio Grande — a business world where merchants on both sides of the river coordinated shipments, sales, and credit in a rapidly expanding border economy.

What emerges from this correspondence is a vivid snapshot of how trade actually functioned in the early years of Brownsville.

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The Immediate News: Goods Have Arrived and Sold

De Lira begins by reassuring Stillman that his merchandise arrived safely:

He reports that the shipment reached Matamoros without incident or delay, and that the goods had been successfully processed and sold.

Among the goods mentioned are:

• Casinetes (coarse wool fabrics)

• Casimires (fine wool cloths / cassimere fabric)

• Mantles or mantas (blankets or heavy cloth)

These fabrics were staples of frontier commerce. Merchants like Stillman imported them through Gulf ports and distributed them throughout northern Mexico and South Texas.

De Lira reports that most of the fabrics sold quickly, though a few pieces had to be returned because of damage in transport.

This tells us something important about the trade:
goods moved fast, but quality still mattered.

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A Merchant’s Problem: Competition

One of the most revealing parts of the letter concerns competition from European merchants.

De Lira explains that:

German merchants in the region are offering long credit terms to customers.

This was a major challenge in the frontier economy.

Many European trading houses — especially German firms — operated with large pools of credit capital. They could afford to extend long payment periods to customers.

Local merchants like de Lira and Stillman often had to compete with these generous terms.

In effect, customers could buy goods now and pay months later.

That practice became common in Mexican markets during the mid-19th century.

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Cash Versus Credit

De Lira notes that he could have sold goods on credit, but chose not to.

Instead, he tried to sell merchandise for cash.

His goal was to accumulate funds that he could send back to Stillman — possibly 3,000–4,000 pesos.

This reveals the constant balancing act frontier merchants faced:

Strategy	Risk
Sell for cash	Slower sales but secure payment
Sell on credit	Faster sales but risk of default

Credit sales were extremely common, but merchants were cautious.

Cash was king on the frontier.

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Stillman’s Binational Trading Network

This letter illustrates how Stillman’s commercial system worked across the Rio Grande.

The chain looked roughly like this:

Northern suppliers and import houses
↓
Charles Stillman & Co., Brownsville warehouses
↓
Mexican merchants like Jesús de Lira in Matamoros
↓
Interior markets of northern Mexico

Through this system, goods flowed constantly across the border.

Brownsville functioned as the gateway between the American Gulf economy and the Mexican interior.

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What the Letter Shows About the Rio Grande Economy

Even in this single piece of correspondence, we see several defining features of the frontier economy:

1. Cross-border trade was routine.
Business moved easily between Brownsville and Matamoros.

2. Merchants operated in multiple languages.
Letters were written in English and Spanish depending on the partner.

3. Credit dominated commerce.
Long payment terms shaped the market.

4. Competition was international.
American, Mexican, and European merchants all competed in the same marketplace.

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The Human Tone of the Letter

Despite its commercial purpose, the letter opens warmly:

“Mi querido y fino amigo”
“My dear and esteemed friend.”

This reminds us that frontier commerce depended heavily on personal trust and relationships.

Without reliable banks or formal financial systems on the border, business often depended on reputation and personal connections between merchants.

Stillman’s success owed much to his ability to maintain these relationships on both sides of the river.

The early economy of Brownsville was not isolated or provincial.
It was part of a dynamic international trading system linking the Rio Grande to the Gulf of Mexico, New Orleans, Europe, and the interior of Mexico.

And letters like this one were the threads that held that network together.