The History of First National 1870 in New Mexico

For over 155 years, we have been deeply embedded in the landscape of New Mexico. Originally founded as First National Bank of Santa Fe in 1870, today to honor this heritage we are known as First National 1870, a division of Sunflower Bank, N.A., in Albuquerque, Los Alamos and Santa Fe. Yet, regardless of our name, our commitment to our customers and the community remains steadfast. We continue to create relationships throughout the community as we move our customers’ hopes from dreams to reality – whether it’s through homes purchased, retirement dreams realized, or businesses seeking a trustworthy partner. 

Our Dedicated and Professional Associates are What Makes First National 1870 Special

Meet one of your neighbors in success, Randy Lucero to learn what 

First National 1870 means to him.


Randy Lucero

Assistant Director of Business Banking, SVP

Beyond 1870: The History of Santa Fe’s Bank

In 1870 — more than 40 years before New Mexico would become the 47th U.S. state in 1912 — it was a remote and not well-known territory having become a U.S. territory only 24 years earlier. 

Even then, it was a region with distinctive cultural and historical traditions, many of which continue to resonate today. For businesses, however, the financial system was vastly different from what we know now. Banking services were provided by merchants; barter was prevalent, and, according to documents from the period, there was not a bank within 400 miles of Santa Fe. 

It was out of this backdrop that the First National Bank of Santa Fe was founded as the first bank in the Southwest, establishing its charter on December 13, 1870, before opening its doors on April 15, 1871, in the first of several locations that it would occupy in present-day Santa Fe. 

Creating the First National Bank in the Southwest

While the new bank wouldn’t open for business for several months, its December 1870 charter marked a new chapter in Santa Fe history. There were still important details to be worked out, with the most important being the acquisition of physical money for an area whose economy had been operating substantively on trade. 

“Three ambulances with an escort of 25 soldiers came in this afternoon bringing a large sum of money for the US Depository in this place,” The Santa Fe New Mexican newspaper reported in February 1871 in a story reprinted in 1954. It was further noted by The New Mexican that “The party was 10 days on the road between Fort Lyons and Union and experienced disagreeable weather throughout the entire trip.” 

The First National Bank of Santa Fe was originally located at the Don Fernando Delgado building, which shares the footprint of our current location on the Santa Fe Plaza. The building was rented for $30 a month and used a second-hand vault purchased for $400. To this day, our downtown branch is a prominent Santa Fe landmark and is home to an annual model train exhibition in the lobby during the holidays and a tourist information booth in the summer. 

Engaging a Century of Growth and Change in New Mexico

As the region’s economy grew, so did the bank. Strong management was able to preserve the First National Bank of Santa Fe through The Great Depression. By the time World War II began, the bank was positioned to play an important role in the secretive U.S. government efforts to end the war. 

The bank’s service to the country, and specifically the Manhattan Project, became known after the end of the war as Northern New Mexico’s role in this national defense effort became clear. The bank had been the repository of federal funds directed to the top-secret Los Alamos atomic bomb project. 

While some controversy has surrounded the project in the years since, it was a great point of patriotic pride at the time.  “Santa Fe and your bank, by a quirk of fortune, were an essential cog in the manufacture of the atomic bomb which brought a sudden end to the war,” the bank president’s report said.  “Your bank not only made up the payrolls for Los Alamos, but also provided banking facilities to a large portion of Los Alamos personnel …” 

Creating Possibility for the Future as First National 1870, a division of Sunflower Bank, N.A.

First National Bank of Santa Fe was acquired by Strategic Growth Bancorp in 2013, which then merged with Sunflower Bank in 2017. To honor the unique identity of the bank and its history in the region, since that time we have operated as First National 1870 in Albuquerque, Los Alamos and Santa Fe. 

In 2020 and 2021, we celebrated the 150th anniversary of the bank, recognizing the December 1870 establishment of its charter and the April 1871 opening of its branch on the Santa Fe Plaza. Check out the below articles about First National 1870 based on research performed in the 1960s and more recently through the archives of the Santa Fe New Mexican.

150th anniversary of First National 1870

Part I: Making History Together

One hundred and fifty years ago, Santa Fe was already deeply embedded in the landscape of Northern New Mexico. The town of fewer than 5,000 people was a seat of influence throughout the region for its cultural and economic strengths when a new institution — the First National Bank of Santa Fe — was established and set forth a legacy that would help reshape the future of the city and its people.
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150th anniversary of First National 1870

Part II: The Doors to New Opportunity Open With The FIrst Bank Branch in Santa Fe

In April 1871 a few months after it was chartered, the First National Bank of Santa Fe opened its doors becoming the first and only national bank for hundreds of miles in any direction. The establishment of the bank would bring a new level of sophistication to the financial dealings of the territory and provide a nucleus for the growth of New Mexico’s economy for the next century and a half.
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A Timeline of First National 1870 in Northern New Mexico

The history of First National 1870 begins with the First National Bank of Santa Fe, whose founding in 1870 and commencement of operations in 1871 are the occasions to celebrate. During this long history, as the Southwest's first bank. We have been witness and participant in the history and growth of Santa Fe and Northern New Mexico.