1. Partner, Paul Weidlinger, Cons. Engr., New York, N. Y., and Adjunct Prof. of Civ. Engrg., Columbia Univ., New York, N. Y.
2. Prof. of Civ. Engrg., Columbia Univ., and Dir., Gugenheim Inst. of Flight Structures, Columbia Univ., New York, N. Y.
3. Assoc., Paul Weidlinger, Cons. Engr., New York, N. Y.