1919 - M.E., Stevens Institute of Technology 1925 - M.A., Columbia University 930-41 Geophysical Service (Predecessor company of Texas Instruments Incorporated) Cofounder, Vice President, President, Chairman 1941-51 Geophysical Service Inc. (GSI), Dallas, TX 1951-73 Texas Instruments Incorporated, Dallas, TX 1951-57 Chairman 1958-64 Chairman of the Executive Committee, Board of Directors 1965-73 Director Southwestern Medical School Foundation, Dallas, TX Member, Executive Committee and Vice President Southern Methodist University, Dallas, TX Member, Board of Governors & Board of Trustees St. Mark's School of Texas, Dallas, TX Member, Board of Trustees, Professional Affiliations: Children's Medical Center Member, Board of Trustees Presbyterian Hospital Member, Board of Trustees Texas Research Foundation Trustee