John Mica was the 17th Chairman of the Committee on Transportation and Infrastructure (and its predecessors) whose service was commemorated in an official portrait. He presided over a committee that gathered under its wings responsibility for a wide range of public works. By the end of the 20th century, legislative reorganizations had reassigned oversight for rivers and harbors, public buildings, and other interior improvements to the committee.
History, Art & Archives, U.S. House of Representatives, “John L. Mica,” http://history.house.gov/Collection/Detail (March 30, 2015)
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