EXHIBIT 24 POWER OF ATTORNEY I, Norman R. Augustine, individually and in my capacities as chief executive officer and a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacities indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacities Date - ---- ---------- ---- /s/ Norman R. Augustine Chief Executive February 23, 1995 - ------------------------- Officer and Norman R. Augustine Director POWER OF ATTORNEY I, Lamar Alexander, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Lamar Alexander Director February 23, 1995 - ---------------------- Lamar Alexander POWER OF ATTORNEY I, Marcus C. Bennett, individually and in my capacities as Director, Vice President, Chief Financial and Chief Accounting Officer of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacities indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacities Date - ---- ---------- ---- /s/ Marcus C. Bennett Director, Vice President, February 23, 1995 - ------------------------- Chief Financial and Marcus C. Bennett Chief Accounting Officer POWER OF ATTORNEY I, John J. Byrne, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ John J. Byrne Director February 23, 1995 - ------------------------- John J. Byrne POWER OF ATTORNEY I, A. James Clark, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ A. James Clark Director February 23, 1995 - ------------------------- A. James Clark POWER OF ATTORNEY I, Edwin I. Colodny, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Edwin I. Colodny Director February 23, 1995 - ------------------------- Edwin I. Colodny POWER OF ATTORNEY I, James L. Everett, III, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ James L. Everett, III Director February 23, 1995 - ------------------------- James L. Everett, III POWER OF ATTORNEY I, Edward L. Hennessy, Jr., individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Edward L. Hennessy, Jr. Director February 23, 1995 - --------------------------- Edward L. Hennessy, Jr. POWER OF ATTORNEY I, Edward E. Hood, Jr., individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Edward E. Hood, Jr. Director February 23, 1995 - ------------------------- Edward E. Hood, Jr. POWER OF ATTORNEY I, Caleb B. Hurtt, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Caleb B. Hurtt Director February 23, 1995 - ------------------------- Caleb B. Hurtt POWER OF ATTORNEY I, Gwendolyn S. King, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Gwendolyn S. King Director February 23, 1995 - ------------------------- Gwendolyn S. King POWER OF ATTORNEY I, Melvin R. Laird, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Melvin R. Laird Director February 23, 1995 - ------------------------- Melvin R. Laird POWER OF ATTORNEY I, Gordon S. Macklin, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Gordon S. Macklin Director February 23, 1995 - ------------------------- Gordon S. Macklin POWER OF ATTORNEY I, Eugene F. Murphy, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Eugene F. Murphy Director February 23, 1995 - ------------------------- Eugene F. Murphy POWER OF ATTORNEY I, Allen E. Murray, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ Allen E. Murray Director February 23, 1995 - ------------------------- Allen E. Murray POWER OF ATTORNEY I, John W. Vessey, Jr., individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ John W. Vessey, Jr. Director February 23, 1995 - ------------------------- John W. Vessey, Jr. POWER OF ATTORNEY I, A. Thomas Young, individually and in my capacity as a director of Martin Marietta Corporation (the "Corporation"), hereby constitute and appoint Frank H. Menaker, Jr. and Stephen M. Piper, and each of them, with full power of substitution and resubstitution, my true and lawful attorneys-in-fact to execute and file, in my name and in the capacity indicated below, the Corporation's Annual Report on Form 10-K for the year ended December 31, 1994, with exhibits thereto and other documents in connection therewith and any and all amendments (including post-effective amendments) or supplements thereto. Name Capacity Date - ---- -------- ---- /s/ A. Thomas Young Director February 23, 1995 - ------------------------- A. Thomas Young