"The First National Bank in Pampa was organized on July 14, 1906, under state charter with a capital stock of $10,000.  Then it was called the First State Bank of Pampa.  J. R. P. Sewell was the motivator of the organization, and the original stockholders were nine men who purchased shares worth $100 each ...
The bank had a temporary office in a corner of the Johnson Mercantile Company building at 105 North Cuyler. In 1907 a two-story building was constructed at 100 North Cuyler where the bank has been located ever since, even though remodeling and expansion have changed the appearance of the building ...
On June 9, 1934, the bank was named First National Bank in Pampa, organized under Federal Deposit Insurance Corporation certificate No. 14207. The newly organized bank assumed all the assets and liabilities of the old bank." [http://www.pampamuseum.org/first-national-bank-begins.html]

Before The First National Bank of Pampa reorganized as The First National Bank in Pampa, in 1931, it absorbed The Pampa National Bank, charter 13291, a non-currency issuing institution. After 1934, The First National Bank in Pampa was itself a non-currency issuing bank.

In 1995, The First National Bank in Pampa was absorbed by the Boatmans First National Bank of Amarillo.

In 1999, it ended as a branch of the Bank of America.