While many companies have formed in Humble over the years, very few have grown to the stature of an internationally known company. One was certainly the Humble Oil Company. But another was one few people know the history of: the original Humble Iron Works. During those early years in Humble, when oil derricks were everywhere, one man became a legend for his abilities as a mechanic. His name was Harry S. Cameron, and his little Humble Iron Works went on to become a manufacturing behemoth known as Cameron Iron Works.

Harry Sellers Cameron was born in Indianapolis in 1872, the son of W. S. Cameron and Estelle Mulkey. He studied architectural and mechanical engineering at Christian Brothers College in Memphis and apprenticed at a machine shop before eventually moving to Texas. In 1913, the Humble Iron Works machine shop was opened by Cameron, T.W. Horn and P. O. Davant. Cameron developed an outstanding reputation for his ability to repair drilling rigs and at forging high-grade steel. He also manufactured special-purpose tools for drilling operations. In 1918, it became the Cameron-Davant Company. The new company’s machine shops were in Humble, Goose Creek and Houston.

In 1920, Oilman James Abercrombie purchased a controlling interest in Cameron’s shops and reorganized the company as Cameron Iron Works. It started with $25,000 capital, five men, two lathes, a drill press and hand tools. In 1922, Abercrombie and Cameron developed a major invention: the first successful blowout preventer for oil wells, which revolutionized the oil and gas industry. During the 1920s, ‘30s and ‘40s, Cameron Iron Works was the major provider of oil-well supplies and specialty items, including tool joints, fishtail bits, drill collars, drive shoes and pump-repair parts.

During World War II, it changed its focus to the manufacture of army ordinance (including gun barrels, mounts and rockets). During the Korean War, in addition to armaments, it had manufacturing, research and development in power generation, jet-engine parts and even a guided-missile program. At the height of the company’s success, it was involved in the energy (including atomic power), petrochemical, military and aerospace industries. It employed 12,300 people across 38 countries. This was a far cry from its simple origins in the town of Humble.

The company was merged with Cooper Industries in 1989. It went through numerous divisions and acquisitions before being acquired by Schlumberger in April 2016. Unfortunately, Cameron didn’t live long enough to see his company grow to such an international success. He died in 1928 at the age of 55.


Dr. Robert Meaux is a lifelong educator and local historian. Got questions or comments about Humble’s fascinating history? Email them to This email address is being protected from spambots. You need JavaScript enabled to view it..

Robert James Meaux
Author: Robert James MeauxEmail: This email address is being protected from spambots. You need JavaScript enabled to view it.
I am a native Houstonian and grew up in the Aldine area, as well as Humble (where my aunts, uncles, cousins and grandparents lived). A graduate of the University of Houston, I spent most of my career as a high school and college marching band director. With additional degrees in educational leadership, computer programming and history, I spend my days working for Humble ISD, writing educational management software, and exploring the history of Humble and Harris County. I currently serve as the president of the Humble Museum board of directors.

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Very interesting article.

Mary Ann Nehi
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