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Robert Hamilton Mattox III, 67, died May 16, 2022, at his home in Tampa, Florida. He was born in El Paso, Texas, to Colonel Robert H. Mattox Jr. and Vivian Gale Mattox. 

With his father’s military posts in the United States Army, Mattox grew up in the United States, Japan, and Germany, developing a lifelong love of international travel. He graduated from Kecoughtan High School, Hampton, Virginia, and earned his B.Arch. at Virginia Tech, Blacksburg, Virginia, then moved to New York City to pursue his architectural career.

A registered architect in multiple states, Mattox worked with legendary firms including Marcel Breuer and I.M. Pei & Associates (New York City), and in corporate and private practice in New York, California, and Florida. After more than a decade in New York City, he relocated to Newport Beach, California, in 1988, and to Tampa in 1996. Most recently, he served as an architect at MacDill Air Force Base, Tampa, for six years. 

He is survived by his wife of 33 years, Rachel Long Mattox; daughter, Julia, of New York City,  sisters and brothers-in-law, Gale Mattox and Dieter Dettke, Chevy Chase, Maryland, and Susan Mattox Sheahan and Kevin Sheahan, Colorado Springs; sisters-in-law and brother-in-law, Janet Long and Dan Clark, and Barbara Long, all of Elyria, Ohio; and nieces, Elizabeth Dettke, New York City; Maggie Sheahan, Denver; and Katie Sheahan, Miami.

A member of the American Institute of Architects (AIA) and St. John’s Episcopal Church, Tampa, Mattox was a talented painter and photographer, and avid traveler, with extensive trips in North and South America, Europe, Asia, Africa, and the Caribbean.

Memorial contributions may be directed to St. John’s Episcopal Church and Parish Day School, Tampa, www.stjohnstampa,org. A private, family service will be held at St. John’s.

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