Dr Pepper Company is the oldest major manufacturer of soft drink concentrates and syrups in the United States. It is America's unique flavor and was made and sold in 1885 in the Central Texas town of Waco.

Dr Pepper is a “native Texan,” originating at Morrison's Old Corner Drug Store. It is the oldest of the major brand soft drinks in America. Like its flavor, the origin of Dr Pepper is out-of-the-ordinary. Charles Alderton, a young pharmacist working at Morrison's store, also served carbonated drinks at the soda fountain. He had noted that the customers soon tired of drinking the same old fruit flavors. After numerous experiments he finally hit upon one he liked.

To test his new drink, he first offered it to store owner Morrison, who also found it to his liking. After repeated sample testing by the two, Alderton was ready to offer his new drink to some of the fountain customers. They liked it as well. Other patrons at Morrison's soda fountain soon learned of Alderton's new drink and began ordering it by asking him to shoot them a "Waco."

Morrison is credited with naming the drink "Dr. Pepper" (the period was dropped in the 1950s). Unfortunately, the origin for the name is unclear. The Museum has collected over a dozen different stories on how the drink became known as Dr Pepper.

Dr. Pepper gained such widespread consumer favor that other soda fountain operators in Waco began buying the syrup from Morrison and serving it. This soon presented a problem for Alderton and Morrison. They could no longer produce enough at their fountain to supply the demand.

Robert S. Lazenby, a young beverage chemist, had also tasted the new drink and was favorably impressed. Alderton, the originator, was primarily interested in pharmacy work and had no designs on the drink. He suggested that Morrison and Lazenby develop it further.

Morrison and Lazenby were impressed with the growth of Dr Pepper. In 1891, they formed a new firm, the Artesian Mfg. & Bottling Company, which later became Dr Pepper Company. Lazenby and his son-in-law, J.B. O'Hara moved the company from Waco to Dallas in 1923.

In 1904, Lazenby and O'Hara, introduced Dr Pepper to almost 20 million people attending the 1904 World's Fair Exposition in St. Louis. The exposition was the setting for more than one major product debut. Hamburgers and hot dogs were first served on buns at the exposition, and the ice cream cone was introduced.