Leon Mart earned his engineering degree from Lehigh in 1913. He was one of the first Lehigh wrestlers to be coached by the legendary Billy Sheridan, and was also a member of Sigma Phi Epsilon fraternity. In 1922, after working for several firms, he formed The Marley Company, Kansas City, Missouri, to manufacture water cooling towers.
The holder of about 25 U.S. and foreign patents for spray nozzles and other parts of water cooling towers, Mart was a Fellow of the American Society of Mechanical Engineers and an active member of several other engineering societies. He also wrote three technical treatises on water cooling towers. Throughout his life he remained an active alumnus, and endowed a scholarship for Lehigh students from the high school in his hometown, Hammonton, New Jersey, and from the greater Kansas City, Missouri area.
Several years after her husband's death in 1959, Mrs. Mart made a major gift that resulted in the naming of a library after her husband and son. The Marts' only son, Thomas, a member of the Class of 1951, had been killed in an auto accident in 1949 while on a summer scientific mission to hunt for uranium. Mart Science and Engineering Library was completed in 1968 and now is operated in conjunction with E.W. Fairchild-Martindale Library and Computing Center.