The foundation of The Cailloux Foundation

The mission of the Foundation is to perpetuate the vision of Floyd A. and Kathleen C. Cailloux.

In the 1930’s and 1940’s, Floyd Cailloux was Senior Vice President of American Iron & Machine Works in Oklahoma City and Tulsa, Oklahoma. The company was owned by his father John F. Cailloux, Sr. After his father sold the company Floyd became President and owner of C&W Machine Works of Great Bend and Liberal, Kansas.

During World War II, Floyd served in the United States Army under General Oveta Culp Hobby. 

In the 1957, Floyd founded SEMCO also known as Systems Engineering & Manufacturing Company. SEMCO was a pneumatic conveying equipment manufacturer that became a leader in this industry.

In 1968, Floyd bought a controlling interest in Keystone Valve.  As Chairman of the Board from 1968 to 1978 he was instrumental in building the company, as Keystone International (KII), into a world leader in the manufacturing and marketing of industrial butterfly valves for general industry. Floyd served as Senior Chairman and Chairman of the Executive Committee from 1978 to 1997. For 29 years, Floyd and his wife Kathleen were major stockholders in Keystone International, which employed thousands of people in manufacturing plants and sales offices around the world. The company manufactured valves and actuators under various brand names such as Keystone, Anderson Greenwood, Yarway, Valvtron, Prince, Vanessa and Morin. Keystone also owned SEMCO until 1985 and Koenig, which made truck bodies and toolboxes, until 1983. Shortly after Floyd’s death in 1997 Keystone International was sold. The Keystone brand and its subsidiaries are now part of Emerson Electric (EMR).

Kathleen’s grandfather, J.W. Cox was a publisher for an Oklahoma City newspaper. Her father, Paul L. Cox worked for his father. During the depression Paul moved his family to Houston where he worked for the Houston Press Newspaper as advertising manager until his death in 1945. 

The Cailloux Foundation was established in 1994 by Floyd and Kathleen to perpetuate their philanthropic vision. Kathleen gave to many charities in her lifetime. In Kerrville, she gave funds to build a new humane society facility, to build a new business school and activity center at Schreiner University, and to remodel the Kerrville Municipal Auditorium, which now bears her name. She also helped fund the Humane Society of the United States, the new Gladney Center for Adoption in Fort Worth and genetic cancer research at M.D. Anderson in Houston.  In 2007, Kathleen died at the age of 92 in Kerrville.

Floyd A. Cailloux
Kathleen C. Cailloux
CW SEMCO KEYSTONE Logos